 Martin M1200 Marquis 80/20 Bronze Medium Acoustic Guitar Strings 3 PackMartin M1200 Marquis 80/20 Bronze Medium Acoustic Guitar Strings offer a composition alloy for brilliance, clarity, and longevity of sound. The Phosphor Bronze winding gives these guitar strings deep, rich basses and clear, bright trebles.Gauges: 13-17-26-35-45-563-pack of long-lasting Martin medium acoustic guitar strings. Accessories, Strings, Guitar Strings, Acoustic Guitar Strings, 6 String Sets for Acoustic Guitar, .013 Gauge Acoustic Guitar Strings Martin KIT – M1200 Martin, .013 Gauge Acoustic Guitar Strings |