Martin SP 80/20 Bronze Acoustic Guitar Strings, Medium
Medium gauge (.013 - .056) 80/20 bronze acoustic guitar strings
- Gauges: .013, .017, .026, .035, .045, .056
- High tensile strength steel core wire wrapped with 80/20 bronze wire
- Both the cores of the wound strings and the plain strings are plated with a golden bronze finish to prolong string life