Martin MP535T Era Acoustic Guitar Strings Custom Light

{
  "id": "martin-mp535t-era-acoustic-guitar-strings-custom-light",
  "handle": "martin-mp535t-era-acoustic-guitar-strings-custom-light",
  "sku": "JC22254",
  "asin": "B0FN9TLN3H",
  "title": "Martin MP535T Era Acoustic Guitar Strings Custom Light",
  "title_original": "Martin MP535T Era Acoustic Guitar Strings Custom, Light",
  "brand": "MARTIN",
  "price": 41.38,
  "social_proof": {
    "bought_past_month": 735,
    "text": "735+ bought in the past month"
  },
  "images": [
    "https://m.media-amazon.com/images/I/61gUQu1wgeL._SL1500_.jpg",
    "https://m.media-amazon.com/images/I/61ezJ2NdETL._SL1500_.jpg",
    "https://m.media-amazon.com/images/I/61HG40fisCL._SL1500_.jpg"
  ],
  "aplus_images": [
    "https://m.media-amazon.com/images/S/aplus-media-library-service-media/f7ba6001-0815-4a3c-acd8-ab6027f8ae60.__CR0,0,1464,600_PT0_SX1464_V1___.png",
    "https://m.media-amazon.com/images/S/aplus-media-library-service-media/bd167d1a-1f14-4927-a329-522b54b385b7.__CR0,0,1464,600_PT0_SX1464_V1___.png",
    "https://m.media-amazon.com/images/S/aplus-media-library-service-media/1ca8614d-62d9-49b1-afcf-7cc99a96e370.__CR0,0,800,600_PT0_SX800_V1___.png",
    "https://m.media-amazon.com/images/S/aplus-media-library-service-media/599e8aec-4abf-44ad-8ad6-2b0db01faca0.__CR0,0,800,600_PT0_SX800_V1___.png",
    "https://m.media-amazon.com/images/S/aplus-media-library-service-media/6113e171-8630-4f65-8e52-1bf7e4c69099.__CR0,0,1464,600_PT0_SX1464_V1___.png"
  ],
  "bullets": [
    "Features a patented Lifespan treatment to protect against corrosion",
    "Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends",
    "Designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history",
    "Developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound",
    ".011-.052"
  ],
  "specs": {
    "Item Weight": "0.352 ounces",
    "Product Dimensions": "5.15 x 4.3 x 0.85 inches",
    "ASIN": "B0FN9TLN3H",
    "Item model number": "41Y25MP535T",
    "Customer Reviews": "4.6 4.6 out of 5 stars (78) 4.6 out of 5 stars",
    "Best Sellers Rank": "#803 in Musical Instruments ( See Top 100 in Musical Instruments ) #24 in Acoustic Guitar Strings",
    "Date First Available": "October 30, 2025",
    "String Gauge": "Light",
    "String Material": "Bronze",
    "Size": "Light"
  },
  "category": "Musical Instruments > Instrument Accessories > Guitar & Bass Accessories > Strings > Acoustic Guitar Strings",
  "category_path": [
    "Musical Instruments",
    "Instrument Accessories",
    "Guitar & Bass Accessories",
    "Strings",
    "Acoustic Guitar Strings"
  ],
  "category_slug": "musical-instruments/instrument-accessories/guitar-bass-accessories/strings/acoustic-guitar-strings",
  "category_leaf": "Acoustic Guitar Strings",
  "variations": {
    "sizes": [
      "S",
      "M",
      "L",
      "XL"
    ],
    "colors": [],
    "size_chart": {
      "label": "Size chart",
      "href": null,
      "html": "<table class=\"a-keyvalue prodDetTable\" id=\"productDetails_detailBullets_sections1\"> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> Item Weight </th> <td class=\"a-size-base prodDetAttrValue\"> 0.352 ounces </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> Product Dimensions </th> <td class=\"a-size-base prodDetAttrValue\"> 5.15 x 4.3 x 0.85 inches </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> ASIN </th> <td class=\"a-size-base prodDetAttrValue\"> B0FN9TLN3H </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> Item model number </th> <td class=\"a-size-base prodDetAttrValue\"> 41Y25MP535T </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\">Customer Reviews</th> <td class=\"a-size-base\"> <div data-asin=\"B0FN9TLN3H\" data-ref=\"dpx_acr_pop_\" id=\"averageCustomerReviews\">\n<span class=\"a-declarative\" data-acrstarslink-click-metrics=\"{}\" data-action=\"acrStarsLink-click-metrics\"> <span class=\"reviewCountTextLinkedHistogram noUnderline\" id=\"acrPopover\" title=\"4.6 out of 5 stars\">\n<span class=\"a-declarative\" data-a-popover='{\"max-width\":\"700\",\"closeButton\":\"true\",\"closeButtonLabel\":\"Close\",\"position\":\"triggerBottom\",\"popoverLabel\":\"Customer Reviews Ratings Summary\",\"url\":\"/gp/customer-reviews/widgets/average-customer-review/popover/ref=dpx_acr_pop_?contextId=dpx&amp;asin=B0FN9TLN3H\"}' data-action=\"a-popover\"> <a class=\"a-popover-trigger a-declarative mvt-cm-cr-review-stars-mini-popover\" href=\"javascript:void(0)\" role=\"button\"> <span aria-hidden=\"true\" class=\"a-size-small a-color-base\"> 4.6 </span> <i class=\"a-icon a-icon-star-mini a-star-mini-4-5 mvt-cm-cr-review-stars-mini\"><span class=\"a-icon-alt\">4.6 out of 5 stars</span></i> <i class=\"a-icon a-icon-popover\"></i></a> </span> </span>\n</span> <span class=\"a-letter-space\"></span> <span class=\"a-declarative\" data-acrlink-click-metrics=\"{}\" data-action=\"acrLink-click-metrics\"> <a class=\"a-link-normal\" href=\"#averageCustomerReviewsAnchor\" id=\"acrCustomerReviewLink\"> <span aria-label=\"78 Reviews\" class=\"a-size-small\" id=\"acrCustomerReviewText\">(78)</span> </a> </span> <script type=\"text/javascript\">\n                    \n                    var dpAcrHasRegisteredArcLinkClickAction;\n                    P.when('A', 'ready').execute(function(A) {\n                        if (dpAcrHasRegisteredArcLinkClickAction !== true) {\n                            dpAcrHasRegisteredArcLinkClickAction = true;\n                            A.declarative(\n                                'acrLink-click-metrics', 'click',\n                                { \"allowLinkDefault\": true },\n                                function (event) {\n                                    if (window.ue) {\n                                        ue.count(\"acrLinkClickCount\", (ue.count(\"acrLinkClickCount\") || 0) + 1);\n                                    }\n                                }\n                            );\n                        }\n                    });\n                </script>\n<script type=\"text/javascript\">\n            P.when('A', 'cf').execute(function(A) {\n                A.declarative('acrStarsLink-click-metrics', 'click', { \"allowLinkDefault\" : true },  function(event){\n                    if(window.ue) {\n                        ue.count(\"acrStarsLinkWithPopoverClickCount\", (ue.count(\"acrStarsLinkWithPopoverClickCount\") || 0) + 1);\n                    }\n                });\n            });\n        </script>\n</div>\n<br/> 4.6 out of 5 stars </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> Best Sellers Rank </th> <td> <span> <ul class=\"a-unordered-list a-nostyle a-vertical\"> <li><span class=\"a-list-item\"><span>#803 in Musical Instruments (<a href=\"/gp/bestsellers/musical-instruments/ref=pd_zg_ts_musical-instruments\">See Top 100 in Musical Instruments</a>)</span></span></li> <li><span class=\"a-list-item\"><span>#24 in <a href=\"/gp/bestsellers/musical-instruments/11967851/ref=pd_zg_hrsr_musical-instruments\">Acoustic Guitar Strings</a></span></span></li> </ul> </span> </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> Date First Available </th> <td class=\"a-size-base prodDetAttrValue\"> October 30, 2025 </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> \tString Gauge\t </th> <td class=\"a-size-base prodDetAttrValue\"> Light </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> \tString Material\t </th> <td class=\"a-size-base prodDetAttrValue\"> Bronze </td> </tr> <tr> <th class=\"a-color-secondary a-size-base prodDetSectionEntry\"> Size </th> <td class=\"a-size-base prodDetAttrValue\"> Light </td> </tr> </table>"
    }
  },
  "reviews": {
    "average_rating": 4.6,
    "customers_say": "Customers praise these guitar strings for their excellent sound, with one noting their throaty Martin tone.",
    "items": [
      {
        "title": "5.0 out of 5 stars They make a difference",
        "body": "These strings really kind of tripped me out! When I first played them, I could tell the difference in the smooth sound or even in heavy strum! Really nice and they made me wish I had found these strings 25 years ago! Read more",
        "author": "Timothy Redmond",
        "rating": 5,
        "date": "February 24, 2026",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Highly recommended! Excellent quality.",
        "body": "The media could not be loaded. These strings are of exceptional quality. Martin expertly engineered a string that maximizes performance, delivering an outstanding blend of classic and modern acoustics. They feel superb, and the individual strings are clearly distinguishable, preventing accidental mix-ups—a mishap I previously made the first time I decided to restring myself. They maintain excellent tuning stability when properly stretched. I am definitely purchasing more. I actually prefer Martin strings over Elixir. Read more",
        "author": "Alvin Malave",
        "rating": 5,
        "date": "March 1, 2026",
        "verified": true,
        "images": [
          "https://m.media-amazon.com/images/I/71nBoH0jm+L._SY88._SL1500_.jpg"
        ]
      },
      {
        "title": "5.0 out of 5 stars Great sound",
        "body": "Good replacement for my Martin standards Read more",
        "author": "Lisa",
        "rating": 5,
        "date": "February 10, 2026",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Great tone!",
        "body": "Want that deep throaty Martin tone…here ya go! Not as slinky as Elixirs, but the tone is worth it, and honestly, they feel just fine. So far, I love them! Read more",
        "author": "Danny",
        "rating": 5,
        "date": "February 8, 2026",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Quality from Martin",
        "body": "Best Martin string yet! Slightly bigger gauge than Elixirs. Read more",
        "author": "Tracy Davis",
        "rating": 5,
        "date": "February 24, 2026",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Worth the money",
        "body": "These are the strings I've been searching for.what an incredible sound. Read more",
        "author": "Ron Dums",
        "rating": 5,
        "date": "February 11, 2026",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Martin Era strings : A lively, balanced tone.",
        "body": "I was pleasantly surprised by the new Era Martin strings. They seem to have all the things I love in a string all wrapped up in one. They are treated thought don’t feel coated, yet are fairly smooth in feel with minimal squeak action. The sound, while subjective, is lively, articulate, while remaining well balanced across the frequency spectrum. I do notice some black on my fingers, though I react to some strings more than others, especially uncoated. The D’Addario XS and Elixir’s are the only ones that have no reaction with my fingertips. My favorite strings overall are the D’Addario XS, perhaps followed by these new Era strings, depending on how their lifespan pans out. I’ve had them on a Collings OM for a week, and they sing just like they did on day one, so good start! Ooh, and they seem to hold tuning well, though I’ve found nothing as unwavering as the XS, especially for the alternate tunings I use. At 17.99$ a set, they Era’s are less than XS and Nano’s, though in my opinion they’d be a real value at 15$ a set. I’m very happy with them so far, and congrats to Martin on releasing a new offering! Read more",
        "author": "Troy Rickertsen",
        "rating": 5,
        "date": "January 25, 2026",
        "verified": true,
        "images": []
      },
      {
        "title": "4.0 out of 5 stars Good if you like think stings",
        "body": "My sine says these are okay I think it's a personal preference. He thinks they are too think but someone else could like that. I'm going to say these are like food...subjective to the person. There is nothing wrong with them and they are sturdy and sound good. They are just not for him. Read more",
        "author": "T. Counts",
        "rating": 4,
        "date": "December 13, 2025",
        "verified": false,
        "images": []
      }
    ]
  },
  "short_description": "Built to achieve unmatched tone and playability, Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound.",
  "about_this_item": "Built to achieve unmatched tone and playability, Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound. Features a patented Lifespan treatment to protect against corrosion; Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends; Designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history; Developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound; .011-.052 Rated 4.6 out of 5. Customers praise these guitar strings for their excelle",
  "long_description": "Built to achieve unmatched tone and playability, Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound.\n\nHighlights: Features a patented Lifespan treatment to protect against corrosion Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends Designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history Developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound .011-.052\n\nKey details: Item Weight: 0.352 ounces | Product Dimensions: 5.15 x 4.3 x 0.85 inches | Customer Reviews: 4.6 4.6 out of 5 stars (78) 4.6 out of 5 stars | String Gauge: Light | String Material: Bronze | Size: Light\n\nSizes may include: S, M, L, XL.\n\nCustomer feedback: 4.6/5 average rating.\n\nCustomers say: Customers praise these guitar strings for their excellent sound, with one noting their throaty Martin tone.\n\nReview snippets: These strings really kind of tripped me out! When I first played them, I could tell the difference in the smooth sound or even in heavy strum! Really nice and they made me wish I had found these strings 25 / The media could not be loaded. These strings are of exceptional quality. Martin expertly engineered a string that maximizes performance, delivering an outstanding blend of classic and modern acoustics. They feel superb, and the individual strings are clearly distinguishable, preventing\n\nFrom the manufacturer Martin ERA Strings Introducting Martin ERA strings because your last note should sound as good as your first. These are our most comfortable and durable strings yet, combing high-tensile tin-plated core technology, Flexible Core construction, and advanced Lifespan treatment so you can play longer without losing tone or feel. With distinctive red Marquis silk-wrapped ends, this is a bold new chapter in a legacy built on timeless tone. Built to achieve unmatched tone and playability Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history.",
  "long_description_blocks": [
    {
      "type": "p",
      "text": "Built to achieve unmatched tone and playability, Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound."
    },
    {
      "type": "p",
      "text": "Highlights: Features a patented Lifespan treatment to protect against corrosion Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends Designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history Developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound .011-.052"
    },
    {
      "type": "p",
      "text": "Key details: Item Weight: 0.352 ounces | Product Dimensions: 5.15 x 4.3 x 0.85 inches | Customer Reviews: 4.6 4.6 out of 5 stars (78) 4.6 out of 5 stars | String Gauge: Light | String Material: Bronze | Size: Light"
    },
    {
      "type": "p",
      "text": "Sizes may include: S, M, L, XL."
    },
    {
      "type": "p",
      "text": "Customer feedback: 4.6/5 average rating."
    },
    {
      "type": "p",
      "text": "Customers say: Customers praise these guitar strings for their excellent sound, with one noting their throaty Martin tone."
    },
    {
      "type": "p",
      "text": "Review snippets: These strings really kind of tripped me out! When I first played them, I could tell the difference in the smooth sound or even in heavy strum! Really nice and they made me wish I had found these strings 25 / The media could not be loaded. These strings are of exceptional quality. Martin expertly engineered a string that maximizes performance, delivering an outstanding blend of classic and modern acoustics. They feel superb, and the individual strings are clearly distinguishable, preventing"
    },
    {
      "type": "p",
      "text": "From the manufacturer Martin ERA Strings Introducting Martin ERA strings because your last note should sound as good as your first. These are our most comfortable and durable strings yet, combing high-tensile tin-plated core technology, Flexible Core construction, and advanced Lifespan treatment so you can play longer without losing tone or feel. With distinctive red Marquis silk-wrapped ends, this is a bold new chapter in a legacy built on timeless tone. Built to achieve unmatched tone and playability Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history."
    },
    {
      "type": "img",
      "src": "https://m.media-amazon.com/images/S/aplus-media-library-service-media/f7ba6001-0815-4a3c-acd8-ab6027f8ae60.__CR0,0,1464,600_PT0_SX1464_V1___.png",
      "alt": "Martin MP535T Era Acoustic Guitar Strings Custom Light details image 1"
    },
    {
      "type": "img",
      "src": "https://m.media-amazon.com/images/S/aplus-media-library-service-media/bd167d1a-1f14-4927-a329-522b54b385b7.__CR0,0,1464,600_PT0_SX1464_V1___.png",
      "alt": "Martin MP535T Era Acoustic Guitar Strings Custom Light details image 2"
    },
    {
      "type": "img",
      "src": "https://m.media-amazon.com/images/S/aplus-media-library-service-media/1ca8614d-62d9-49b1-afcf-7cc99a96e370.__CR0,0,800,600_PT0_SX800_V1___.png",
      "alt": "Martin MP535T Era Acoustic Guitar Strings Custom Light details image 3"
    },
    {
      "type": "img",
      "src": "https://m.media-amazon.com/images/S/aplus-media-library-service-media/599e8aec-4abf-44ad-8ad6-2b0db01faca0.__CR0,0,800,600_PT0_SX800_V1___.png",
      "alt": "Martin MP535T Era Acoustic Guitar Strings Custom Light details image 4"
    },
    {
      "type": "img",
      "src": "https://m.media-amazon.com/images/S/aplus-media-library-service-media/6113e171-8630-4f65-8e52-1bf7e4c69099.__CR0,0,1464,600_PT0_SX1464_V1___.png",
      "alt": "Martin MP535T Era Acoustic Guitar Strings Custom Light details image 5"
    }
  ],
  "videos": [
    {
      "id": "849c9389-7646-4b11-ad57-5a0ff445de45",
      "src": "https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/849c9389-7646-4b11-ad57-5a0ff445de45/default.jobtemplate.hls.m3u8",
      "sources": [
        {
          "type": "application/x-mpegURL",
          "src": "https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/849c9389-7646-4b11-ad57-5a0ff445de45/default.jobtemplate.hls.m3u8"
        }
      ],
      "poster": "https://m.media-amazon.com/images/S/al-na-9d5791cf-3faf/114798f8-f644-4f63-bb8d-74e43ba86fe9.mp4/r/THUMBNAIL_360P_FRAME_3_CAPTURE_2.JPG"
    },
    {
      "id": "cdd9d14b-5921-4ce3-a8d4-1556ae52bbe0",
      "src": "https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/cdd9d14b-5921-4ce3-a8d4-1556ae52bbe0/videopreview.jobtemplate.mp4.default.mp4",
      "sources": [
        {
          "type": "video/mp4",
          "src": "https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/cdd9d14b-5921-4ce3-a8d4-1556ae52bbe0/videopreview.jobtemplate.mp4.default.mp4"
        }
      ],
      "poster": "https://m.media-amazon.com/images/S/al-na-9d5791cf-3faf/114798f8-f644-4f63-bb8d-74e43ba86fe9.mp4/r/THUMBNAIL_360P_FRAME_3_CAPTURE_2.JPG"
    }
  ],
  "color_swatches": {
    "Light Standard": "https://m.media-amazon.com/images/I/41FK38e2G-L._AC_US40_.jpg",
    "Medium Standard": "https://m.media-amazon.com/images/I/414LvGtFFzL._AC_US40_.jpg",
    "Light Custom": "https://m.media-amazon.com/images/I/41DIOiy6SXL._AC_US40_.jpg",
    "Light Artist": "https://m.media-amazon.com/images/I/41R1UxYr11L._AC_US40_.jpg"
  },
  "color_image_key": {
    "Light Standard": "615IB+ayHvL",
    "Medium Standard": "61cMTT-JuOL",
    "Light Custom": "61gUQu1wgeL",
    "Light Artist": "61MdqsO5p-L"
  },
  "color_images": {
    "Light Standard": [
      "https://m.media-amazon.com/images/I/615IB+ayHvL._SL1500_.jpg"
    ],
    "Medium Standard": [
      "https://m.media-amazon.com/images/I/61cMTT-JuOL._SL1500_.jpg"
    ],
    "Light Custom": [
      "https://m.media-amazon.com/images/I/61gUQu1wgeL._SL1500_.jpg"
    ],
    "Light Artist": [
      "https://m.media-amazon.com/images/I/61MdqsO5p-L._SL1500_.jpg"
    ]
  },
  "description_sources": {
    "meta": "Amazon.com: Martin MP535T Era Acoustic Guitar Strings Custom, Light : Everything Else",
    "product": "Built to achieve unmatched tone and playability, Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound.",
    "aplus": "From the manufacturer Martin ERA Strings Introducting Martin ERA strings because your last note should sound as good as your first. These are our most comfortable and durable strings yet, combing high-tensile tin-plated core technology, Flexible Core construction, and advanced Lifespan treatment so you can play longer without losing tone or feel. With distinctive red Marquis silk-wrapped ends, this is a bold new chapter in a legacy built on timeless tone. Built to achieve unmatched tone and playability Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history."
  },
  "variant_seo": {
    "variant_dimensions": [
      "size"
    ],
    "variant_current": {},
    "variant_options": {
      "size": [
        "S",
        "M",
        "L",
        "XL"
      ]
    },
    "item_group_id_candidate": "B0FYJB43FS",
    "unavailable_options": {}
  },
  "normalized_offer": {
    "price": 17.99,
    "currency": "USD",
    "list_price": null,
    "sale_price": null,
    "availability": "usually ships within 2 to 4 weeks",
    "condition": "New",
    "seller_raw": null,
    "shipping_raw": "FREE delivery on orders over $35 shipped by Amazon.",
    "delivery_raw": "FREE delivery on orders over $35 shipped by Amazon."
  },
  "specs_raw": {
    "Item Weight": "0.352 ounces",
    "Product Dimensions": "5.15 x 4.3 x 0.85 inches",
    "ASIN": "B0FN9TLN3H",
    "Item model number": "41Y25MP535T",
    "Customer Reviews": "4.6 4.6 out of 5 stars (78) 4.6 out of 5 stars",
    "Best Sellers Rank": "#803 in Musical Instruments ( See Top 100 in Musical Instruments ) #24 in Acoustic Guitar Strings",
    "Date First Available": "October 30, 2025",
    "String Gauge": "Light",
    "String Material": "Bronze",
    "Size": "Light"
  },
  "specs_normalized": {
    "item_weight": "0.352 ounces",
    "product_dimensions": "5.15 x 4.3 x 0.85 inches",
    "asin": "B0FN9TLN3H",
    "item_model_number": "41Y25MP535T",
    "customer_reviews": "4.6 4.6 out of 5 stars (78) 4.6 out of 5 stars",
    "best_sellers_rank": "#803 in Musical Instruments ( See Top 100 in Musical Instruments ) #24 in Acoustic Guitar Strings",
    "date_first_available": "October 30, 2025",
    "string_gauge": "Light",
    "string_material": "Bronze",
    "size": "Light"
  },
  "attributes_normalized": {
    "material": null,
    "dimensions": "5.15 x 4.3 x 0.85 inches",
    "weight": "0.352 ounces",
    "fabric": null,
    "closure": null,
    "care": null,
    "fit_type": null,
    "rise": null,
    "inseam": null,
    "sleeve": null,
    "neckline": null,
    "pattern": null,
    "color_spec": null
  },
  "product_overview_rows": [
    {
      "key": "Brand",
      "value": "MARTIN"
    },
    {
      "key": "String Gauge",
      "value": "Light"
    },
    {
      "key": "Instrument",
      "value": "Acoustic Guitar"
    },
    {
      "key": "String Material Type",
      "value": "Bronze"
    },
    {
      "key": "Global Trade Identification Number",
      "value": "25729789708073"
    },
    {
      "key": "Brand",
      "value": "MARTIN"
    },
    {
      "key": "String Gauge",
      "value": "Light"
    },
    {
      "key": "Instrument",
      "value": "Acoustic Guitar"
    },
    {
      "key": "String Material Type",
      "value": "Bronze"
    },
    {
      "key": "Global Trade Identification Number",
      "value": "25729789708073"
    }
  ],
  "breadcrumb_items": [
    {
      "text": "Musical Instruments",
      "href": "https://www.amazon.com/musical-instruments-accessories-sound-recording/b/ref=dp_bc_1?ie=UTF8&node=11091801"
    },
    {
      "text": "Instrument Accessories",
      "href": "https://www.amazon.com/Instrument-Accessories-Products-Musical-Instruments/b/ref=dp_bc_2?ie=UTF8&node=11965871"
    },
    {
      "text": "Guitar & Bass Accessories",
      "href": "https://www.amazon.com/Guitar-Bass-Accessories-Instrument-Products/b/ref=dp_bc_3?ie=UTF8&node=11967641"
    },
    {
      "text": "Strings",
      "href": "https://www.amazon.com/Guitar-Strings-Bass-Strings/b/ref=dp_bc_4?ie=UTF8&node=486420011"
    },
    {
      "text": "Acoustic Guitar Strings",
      "href": "https://www.amazon.com/Acoustic-Guitar-Strings/b/ref=dp_bc_5?ie=UTF8&node=11967851"
    }
  ],
  "department_store": "Musical Instruments",
  "rating_average": 4.6,
  "rating_count": 78,
  "ratings_histogram": null,
  "review_summary_raw": "Customers praise these guitar strings for their excellent sound, with one noting their throaty Martin tone.",
  "customers_say_raw": "Customers praise these guitar strings for their excellent sound, with one noting their throaty Martin tone.",
  "media_seo": {
    "images_hero": "https://m.media-amazon.com/images/I/61gUQu1wgeL._SL1500_.jpg",
    "images_gallery": [
      "https://m.media-amazon.com/images/I/61ezJ2NdETL._SL1500_.jpg",
      "https://m.media-amazon.com/images/I/61HG40fisCL._SL1500_.jpg"
    ],
    "images_variant_map": {
      "Light Standard": "https://m.media-amazon.com/images/I/615IB+ayHvL._SL1500_.jpg",
      "Medium Standard": "https://m.media-amazon.com/images/I/61cMTT-JuOL._SL1500_.jpg",
      "Light Custom": "https://m.media-amazon.com/images/I/61gUQu1wgeL._SL1500_.jpg",
      "Light Artist": "https://m.media-amazon.com/images/I/61MdqsO5p-L._SL1500_.jpg"
    },
    "images_aplus": [
      "https://m.media-amazon.com/images/S/aplus-media-library-service-media/f7ba6001-0815-4a3c-acd8-ab6027f8ae60.__CR0,0,1464,600_PT0_SX1464_V1___.png",
      "https://m.media-amazon.com/images/S/aplus-media-library-service-media/bd167d1a-1f14-4927-a329-522b54b385b7.__CR0,0,1464,600_PT0_SX1464_V1___.png",
      "https://m.media-amazon.com/images/S/aplus-media-library-service-media/1ca8614d-62d9-49b1-afcf-7cc99a96e370.__CR0,0,800,600_PT0_SX800_V1___.png",
      "https://m.media-amazon.com/images/S/aplus-media-library-service-media/599e8aec-4abf-44ad-8ad6-2b0db01faca0.__CR0,0,800,600_PT0_SX800_V1___.png",
      "https://m.media-amazon.com/images/S/aplus-media-library-service-media/6113e171-8630-4f65-8e52-1bf7e4c69099.__CR0,0,1464,600_PT0_SX1464_V1___.png"
    ],
    "videos": [
      "https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/849c9389-7646-4b11-ad57-5a0ff445de45/default.jobtemplate.hls.m3u8",
      "https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/cdd9d14b-5921-4ce3-a8d4-1556ae52bbe0/videopreview.jobtemplate.mp4.default.mp4"
    ],
    "media_counts": {
      "gallery": 3,
      "aplus": 5,
      "variant_colors_with_images": 4,
      "videos": 2
    }
  },
  "page_metadata": {
    "canonical_url": "https://www.amazon.com/Martin-MP535T-Acoustic-Guitar-Strings/dp/B0FN9TLN3H",
    "meta_title_raw": "Amazon.com: Martin MP535T Era Acoustic Guitar Strings Custom, Light : Everything Else",
    "meta_description_raw": "Amazon.com: Martin MP535T Era Acoustic Guitar Strings Custom, Light : Everything Else",
    "og_title": null,
    "og_description": null,
    "og_image": null,
    "robots_meta": null
  },
  "schema_inputs": {
    "name_candidate": "Martin MP535T Era Acoustic Guitar Strings Custom, Light",
    "brand": "MARTIN",
    "sku": "B0FN9TLN3H",
    "identifiers": {
      "asin": "B0FN9TLN3H",
      "upc": null,
      "ean": null,
      "gtin": null,
      "mpn": "41Y25MP535T",
      "isbn": null
    },
    "image_urls": [
      "https://m.media-amazon.com/images/I/61gUQu1wgeL._SL1500_.jpg",
      "https://m.media-amazon.com/images/I/61ezJ2NdETL._SL1500_.jpg",
      "https://m.media-amazon.com/images/I/61HG40fisCL._SL1500_.jpg"
    ],
    "offer": {
      "price": 17.99,
      "currency": "USD",
      "availability": "usually ships within 2 to 4 weeks"
    },
    "aggregate_rating": {
      "rating_value": 4.6,
      "review_count": 78
    },
    "variant_candidates": {
      "size": [
        "S",
        "M",
        "L",
        "XL"
      ]
    },
    "twister": {
      "dimensions": [
        "size_name",
        "style_name"
      ],
      "values": {
        "size_name": [
          "Medium",
          "Light"
        ],
        "style_name": [
          "Custom",
          "Standard",
          "Artist"
        ]
      },
      "asin_by_value": {
        "size_name": {
          "Medium": "B0FN9WWB73",
          "Light": "B0FN9TLN3H"
        },
        "style_name": {
          "Custom": "B0FN9TLN3H",
          "Standard": "B0FN94LGJJ",
          "Artist": "B0FNB1Z4SM"
        }
      }
    }
  },
  "merchant_inputs": {
    "title_parts": {
      "brand": "MARTIN",
      "product_type": "Acoustic Guitar Strings",
      "model": "41Y25MP535T"
    },
    "description_facts": [
      "Features a patented Lifespan treatment to protect against corrosion",
      "Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends",
      "Designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history",
      "Developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound",
      ".011-.052"
    ],
    "color": null,
    "size": null,
    "material": null,
    "pattern": null,
    "gender": null,
    "age_group": "adult",
    "item_group_id_candidate": "B0FYJB43FS",
    "image_link": "https://m.media-amazon.com/images/I/61gUQu1wgeL._SL1500_.jpg",
    "additional_image_links": [
      "https://m.media-amazon.com/images/I/61ezJ2NdETL._SL1500_.jpg",
      "https://m.media-amazon.com/images/I/61HG40fisCL._SL1500_.jpg"
    ],
    "price": 17.99,
    "availability": "usually ships within 2 to 4 weeks"
  },
  "qa": {
    "asin_filename": "B0FN9TLN3H",
    "asin_html_detected": "B0FN9TLN3H",
    "asin_match": true,
    "qa_flags": [
      "variant_current_missing",
      "variant_current_missing_size"
    ],
    "qa_score": 95,
    "parse_warnings": [
      "Variant dimensions ['size'] detected but no current selection found"
    ],
    "identity_warnings": [],
    "field_sources": {
      "title": "og:title",
      "review_avg": "acrPopover"
    },
    "field_confidence": {
      "title": "high",
      "brand": "high",
      "price": "high",
      "images": "high",
      "reviews": "high"
    }
  },
  "brand_info": {
    "brand": "MARTIN",
    "brand_raw": "MARTIN",
    "creator_raw": null,
    "author_raw": null,
    "format_raw": null,
    "brand_confidence": "high",
    "brand_qa_flags": []
  },
  "related": [
    {
      "id": "under-armour-mens-tech-golf-polo",
      "title": "Under Armour Mens Tech Golf Polo",
      "price": 27.8,
      "category": "Clothing, Shoes & Jewelry > Men > Clothing > Active > Active Shirts & Tees",
      "images": [
        "https://m.media-amazon.com/images/I/41jHf7bjmXL._SL1500_.jpg"
      ]
    },
    {
      "id": "regency-hill-bentley-traditional-french-country-style-buffet-table-lamps-31-5-tall-skinny-set-of-2-weathered",
      "title": "Regency Hill Bentley Traditional French Country Style Buffet Table Lamps 31 5 Tall Skinny Set of 2 Weathered",
      "price": 139.98,
      "category": "Tools & Home Improvement > Lighting & Ceiling Fans > Lamps & Shades > Table Lamps",
      "images": [
        "https://m.media-amazon.com/images/I/71JhDvGr8uL._SL1500_.jpg"
      ]
    },
    {
      "id": "aurola-workout-leggings-for-women-seamless-scrunch-tights-tummy-control-gym-fitness-girl-sport-active-yoga-pants",
      "title": "AUROLA Workout Leggings for Women Seamless Scrunch Tights Tummy Control Gym Fitness Girl Sport Active Yoga Pants",
      "price": 35.99,
      "category": "Clothing, Shoes & Jewelry > Women > Clothing > Active > Leggings",
      "images": [
        "https://m.media-amazon.com/images/I/410w6UzpWyL._SL1500_.jpg"
      ]
    },
    {
      "id": "sound-frequency-machine-meditation-generator-instrument-tone-device-tools-solfeggio-frequencies-bath-for-yoga-mindfulness-vibration-system",
      "title": "Sound Frequency Machine Meditation Generator Instrument Tone Device Tools - Solfeggio Frequencies Bath for Yoga Mindfulness Vibration System",
      "price": 79.89,
      "category": "Health & Household > Health Care > Alternative Medicine > Sound Therapy",
      "images": [
        "https://m.media-amazon.com/images/I/81IPXu1R54L._SL1500_.jpg"
      ]
    },
    {
      "id": "guinness-hockey-jersey-embroidered-polyester-athletic-shirt-branded-sports-jersey",
      "title": "Guinness Hockey Jersey Embroidered Polyester Athletic Shirt Branded Sports Jersey",
      "price": 138.95,
      "category": "Clothing, Shoes & Jewelry > Sport Specific Clothing > Rugby > Men > Jerseys",
      "images": [
        "https://m.media-amazon.com/images/I/71LfmeF+xaL._SL1500_.jpg"
      ]
    }
  ],
  "customer_also_viewed": [
    {
      "id": "rechargeable-lighter-windproof-plasma-lighter-flameless-with-flashlight-for-camping-hiking-outdoor-survival-gear",
      "title": "Rechargeable Lighter Windproof Plasma Lighter Flameless with Flashlight for Camping Hiking Outdoor Survival Gear",
      "price": 1.99,
      "category": "Health & Household > Household Supplies > Lighters & Matches > Lighters",
      "images": [
        "https://m.media-amazon.com/images/I/61RsKALFdNL._SL1500_.jpg"
      ]
    },
    {
      "id": "kids-drum-set-montessori-musical-instruments-for-toddlers-1-3-wooden-baby-drum-kit-with-xylophone-preschool-music-toys",
      "title": "Kids Drum Set Montessori Musical Instruments for Toddlers 1-3 Wooden Baby Drum Kit with Xylophone Preschool Music Toys",
      "price": 37.99,
      "category": "Toys & Games > Learning & Education > Musical Instruments > Drums & Percussion",
      "images": [
        "https://m.media-amazon.com/images/I/71FXN7JJyrL._SL1500_.jpg"
      ]
    },
    {
      "id": "crossbody-bags-for-women-leather-purses-vegan-cross-body-bag-with-adjustable-wide-shoulder-strap-brown-trendy-handbags",
      "title": "Crossbody Bags for Women Leather Purses Vegan Cross Body Bag with Adjustable Wide Shoulder Strap Brown Trendy Handbags",
      "price": 18.99,
      "category": "Clothing, Shoes & Jewelry > Women > Handbags & Wallets > Hobo Bags",
      "images": [
        "https://m.media-amazon.com/images/I/91FFdUoz78L._SL1500_.jpg"
      ]
    },
    {
      "id": "vocoste-aquarium-decorations-hideaway-rock-cave-ceramic-fish-tank-decoration-stone-for-aquatic-pets-to-breed-play-rest",
      "title": "VOCOSTE Aquarium Decorations Hideaway Rock Cave Ceramic Fish Tank Decoration Stone for Aquatic Pets to Breed Play Rest",
      "price": 9.99,
      "category": "Pet Supplies > Fish & Aquatic Pets > Aquarium Accessories > Aquarium Décor > Ornaments",
      "images": [
        "https://m.media-amazon.com/images/I/6176-ib-SHL._SL1500_.jpg"
      ]
    },
    {
      "id": "hidden-camera-detector-rf-signal-scanner-bug-finder-listening-device-gps-tracker-detector-for-car-hotel-meeting",
      "title": "Hidden Camera Detector RF Signal Scanner Bug Finder Listening Device GPS Tracker Detector for Car Hotel Meeting",
      "price": 168.99,
      "category": "Electronics > Camera & Photo > Video Surveillance > Surveillance Cameras > Hidden Cameras",
      "images": [
        "https://m.media-amazon.com/images/I/61IbLZvB1CL._SL1500_.jpg"
      ]
    },
    {
      "id": "soundcore-by-anker-liberty-4-nc-wireless-earbuds-98-5-noise-reduction-adaptive-noise-cancelling-to-ears-and",
      "title": "Soundcore by Anker Liberty 4 NC Wireless Earbuds 98 5 Noise Reduction Adaptive Noise Cancelling to Ears and",
      "price": 52.99,
      "category": "Electronics > Headphones, Earbuds & Accessories > Headphones & Earbuds > Earbud Headphones",
      "images": [
        "https://m.media-amazon.com/images/I/5130BCxweAL._SL1500_.jpg"
      ]
    },
    {
      "id": "ultra-lightweight-packable-backpack-foldable-daypack-for-travel-hiking-and-camping-packable-travel-backpack",
      "title": "Ultra Lightweight Packable Backpack Foldable Daypack for Travel Hiking and Camping Packable Travel Backpack",
      "price": null,
      "category": "",
      "images": [
        "https://m.media-amazon.com/images/I/616B2rGKQFL._SL1500_.jpg"
      ]
    },
    {
      "id": "behavior-reward-chart-system-pad-with-26-chore-charts-for-kids-2800-stickers-to-motivate-responsibility-good",
      "title": "Behavior Reward Chart System - Pad with 26 Chore Charts for Kids 2800 Stickers to Motivate Responsibility Good",
      "price": 12.99,
      "category": "Office Products > Office & School Supplies > Education & Crafts > Teaching Materials > Awards & Incentives Supplies",
      "images": [
        "https://m.media-amazon.com/images/I/71b8H4Fbr0L._SL1500_.jpg"
      ]
    }
  ],
  "title_seo": "Martin Era Acoustic Guitar Strings Custom Light",
  "title_seo_family": "accessories",
  "title_seo_product_type": "Acoustic Guitar Strings",
  "title_seo_type_source": "fallback"
}