Martin MA130 SP Silk & Steel acoustic guitar strings are engineered with the guitarists in mind and they will always stand up to rigorous practice and performance schedules.

The build starts with high tensile-strength core wire, then tin-plating on all six strings for added corrosion resistance; because what you don’t see matters! When coupled with the highest quality wrap wire you get consistent true tone that you can count on song after song.

Martin Authentic Acoustic SP strings offer excellent tuning stability, corrosion resistance and great playability.

String Gauges: .0115, .014, .023, .028, .038, .047