{"product_id":"martin-era-strings-12-54-phospher-bronze-mp540t","title":"Martin Era Strings 12-54 Phospher Bronze MP540T","description":"\u003cp\u003e\u003cspan\u003eBuilt 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.\u003c\/span\u003e\u003c\/p\u003e","brand":" Black Mountain Guitar Co","offers":[{"title":"Default Title","offer_id":46615912251561,"sku":null,"price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/3536\/6313\/files\/MP540T_render_front.webp?v=1764104273","url":"https:\/\/blackmountainguitar.com\/products\/martin-era-strings-12-54-phospher-bronze-mp540t","provider":" Black Mountain Guitar Co","version":"1.0","type":"link"}