Martin MM12 Retro Acoustic Guitar Strings (Light) Leave a Comment / Uncategorized / By Denise / September 11, 2017 93 GEARANK 93 out of 100. Incorporating 475+ ratings and reviews. Street Price: $9.49 Manufacturer: Martin Features Set: MM12 Gauge: Custom Light 12-15-25-31-41-54 Tension: 172.8 Package: 6 strings
