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

Tension: 168 lbs.