Martin Era Jason Isbell Signature Treated Acoustic Guitar Strings Artist MJI12T - .012 - .054

Charted 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. Gauge: Artist Light .012-.016-.025-.032-.042-.054 Tension: 168.50 Model: MJI12T

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