Martin MSP4200 | 013-056 | Superior Performance | Phosphor Bronze Acoustic Guitar Strings | Medium

Martin SP Acoustic strings are designed with the performer in mind. Made with high-tensile strength core wire and finished with the highest-quality wrap wire, Martin's SP line of strings stands up to rigorous practice and performance schedules to deliver consistent true tone that you can count on song after song.

• Martin Superior Performance Acoustic Guitar Strings
• Phosphor Bronze (92/8) 
• High-tensile strength core wire and finished with the highest-quality wrap wire
• Deliver consistent true tone that you can count on
• Gauge: .013, .017, .026, .035, .045, .056 (Medium)