Martin Original M140 80/20 Bronze Light 6-String Acoustic Guitar Set

The string that started it all 50 years ago is now back by popular demand. Martin’s original M140 light gauge strings, with 80/20 composition, are ideally suited for players who love deep, rich bass tones and clear, bright trebles. Strings are plain steel and 80/20 bronze round wound, light gauge .012 .016 .025w .032w .042w .054w.