{"product_id":"martin-era-treated-acoustic-guitar-strings-medium-mp550t-013-056","title":"Martin Era Treated Acoustic Guitar Strings Medium MP550T - .013 - .056","description":"\u003cp data-end=\"358\" data-start=\"84\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eCharted as the pinnacle of Martin's phosphor bronze fleet. Era™ strings dock the best tech in the Martin lineup: patented Lifespan® treatment to fend off corrosion, Flexible Core construction for effortless fretability, and silk-wrapped ball ends — a premium nod to Martin's handcrafted heritage and a friendly fit for vintage instruments. The Artist Light variant, developed with six-time GRAMMY® winner Jason Isbell, swaps in a traditional SP® core to lock in his signature acoustic voice. A new orbit for what phosphor bronze can be.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"358\" data-start=\"84\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eGauge: \u003c\/strong\u003eMedium .013-.017-.026-.035-.045-.056\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"358\" data-start=\"84\"\u003e\u003cspan\u003e\u003cstrong\u003eTension:\u003c\/strong\u003e 190.40\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"358\" data-start=\"84\"\u003e\u003cspan\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eMP550T\u003c\/span\u003e\u003c\/p\u003e","brand":"Martin","offers":[{"title":"Default Title","offer_id":53224035025080,"sku":"41Y25MP550T","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2795\/3336\/files\/ISG__0002_MP550T_render_front.jpg?v=1777742363","url":"https:\/\/www.interstellarguitars.com\/products\/martin-era-treated-acoustic-guitar-strings-medium-mp550t-013-056","provider":"Interstellar Guitars","version":"1.0","type":"link"}