Martin MM12 Retro Monel Acoustic Guitar Strings 12/54 Light

Features: Vintage-inspired strings for throwback tone with a retro voice Monel nickel/copper alloy wrap yields reduced pick noise with smoother attack Crisp articulation mellows quickly and lets tonewoods take center stage Naturally corrosion-resistant Great for acoustic-electric guitars and styles like folk, jazz, and Americana Gauges: .012, .015, .025, .031, .041, .054 New, unopened package. Buy from me. I'm a small business. And very nice. :)