Martin MA140 80/20 Bronze Acoustic Guitar Strings .012 - .054

MA140 80/20 Bronze .012,.016,025, 032,.042,.054

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