Martin MM13 Retro 6-String Medium, Monel Acoustic Guitar Strings

Martin Retro strings are a tough set that offers true, consistent tone and sounds like nothing else on the market. Martin's solid nickel/copper alloy blend provides a reduced pick attack that allows the guitar's tonewoods to be heard, not overshadowed. Martin's proprietary Monel wrap wire is naturally corrosion resistant.

Gauge: Medium
E: .013
B: .017
G: .026
D: .035
A: .045
E: .056
Tension: 190.9