Martin MA540FX Tommys Choice Authentic Acoustic Flexible Core Phosphor Bronze Acoustic Guitar Strings, Light, 12-54

Martin® Authentic Acoustic® Flexible Core strings are designed to minimize finger fatigue over extended playing time, as well as provide plenty of flex. They feature a lighter gauge version of our Superior Performance core, along with a heavier gauge to deliver a full, balanced tone, with increased flexibility and playability. Martin’s impeccable standards for acoustic guitar tone are built into their exacting string design and manufacturing process. That’s why Martin produces its own branded strings.

Characteristic:

• Wire Size: .012, .016, .025, .032, .042, .054, Light