Martin MA140 80/20 Bronze Authentic Acoustic Guitar Strings, Light (12-54)
These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. We start with our highest tensile-strength core wire, then tin-plate it on all six strings for added corrosion resistance; because what you don’t see matters! When coupled with our highest quality wrap wire you get consistent true tone that you can count on song after song.
MA140 SP 80/20 Bronze Gauges: .012, .016, .025, .032, .042, .054