Martin Guitars Authentic Acoustic Flexible Core Strings - 12-54 Light Phosphor Bronze

Martin® Authentic Acoustic® Flexible Core strings are designed to reduce finger fatigue and allow huge bends. They feature a lighter gauge version of Martin's Superior Performance core wire combined with heavier wrap wire to deliver a full and balanced tone with increased flex and playability. Martin's impeccable standards for acoustic guitar tone are embedded in their string design and precision manufacturing process.

Gauge

E: .012

B: .016

G: .025

D: .032

A: .042

E: .054