Martin Acoustic SP Medium MA550 13|56 Promo 3 Pack

Martin® Authentic Acoustic® Superior Performance SP® strings feature higher tensile strength and tin-plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. That's why we make our own.

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

• Limited Time Offer - Strings Value Pack!

• Phosphor Bronze

• .013 .017 .026 .035 .045 .056