Martin MA150 Authentic Acoustic SP 80/20 Bronze Acoustic Guitar Strings - Medium (.013-.056)

Martin MA150 is a Medium-gauge (.013-.056) set of Authentic Acoustic SP 80/20 bronze acoustic guitar strings. Martin uses a high tensile-strength core wire, tin-plated on all six strings for corrosion resistance, wrapped with 80/20 bronze for a bright, full tone with strong volume. The medium gauge suits larger-bodied guitars and heavier strumming while offering good tuning stability.