C. F. Martin & Co. MA500 SP Authentic Acoustic 92/8 HT Phosphor Bronze Guitar Strings offer excellent tuning stability, corrosion resistance and great playability.

They are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. Martin starts with the highest tensile-strength core wire, then tin-plates that core on all six strings for added corrosion resistance; because what you don't see matters! Coupled with their highest quality wrap wire, you get consistent true tone that you can count on song after song.

At C.F. Martin & Co., they design their strings like they design their guitars - with maximum performance, exacting tone, and playability in mind. They know that musicians demand strings that will perform onstage, in the studio, or wherever their music takes them. Martin strings are designed to deliver excellent tone, clarity, and response and are made from the highest-quality materials.