Martin MA550FX Authentic Acoustic Flexible Core 92/8 Phosphor Bronze Guitar Strings, 13-56 Medium

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. 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 Guitars