Martin MA550FX Flexible Core Phosphor Bronze Medium Acoustic Guitar Strings 13-56

Martin MA550FX Flexible Core Phosphor Bronze Medium Acoustic Guitar Strings 13-56 Martin Authentic Acoustic Flexible Core strings are designed to reduce finger fatigue and allow huge bends. They feature a lighter gauge version of our Superior Performance core wire combined with heavier wrap wire to deliver a full and balanced tone with increased flex and playability. Martin impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. Gauge: Medium E: .013 B: .017 G: .026 D: .035 A: .045 E: .056 Tension: 190.4