Martin M150 Medium 80/20 Bronze Acoustic Guitar Strings 13 56

M150 Medium 80/20 Bronze Acoustic Guitar Strings 13 56 description:

Martin Phosphor Bronze strings are made from 80/20 composition alloy to give brilliance, clarity, and longevity of sound. The Phosphor Bronze winding alloy is ideally suited for making strings that have deep, rich basses and clear, bright trebles. Martin Strings are wound to precise specifications.