 Martin M1200 Marquis 80/20 Bronze Medium Acoustic Guitar Strings (3-Pack)Gauges 13-17-26-35-45-56. Pack of 3.Martin M1200 Marquis 80/20 Bronze Medium Acoustic Guitar Strings offer a composition alloy for brilliance, clarity, and longevity of sound. The Phosphor Bronze winding is ideally suited for making strings that have deep, rich basses and clear, bright trebles.Bronze alloy for brilliance and long lifeGreat price for a 3 pack Accessories, Strings, Guitar Strings, Acoustic Guitar Strings, 6 String Sets for Acoustic Guitar, .013 Gauge Acoustic Guitar Strings Martin 41M1200-3PK Martin, .013 Gauge Acoustic Guitar Strings |