Martin 41Y18MA130 Authentic Acoustic Superior Performance Silk & Steel Guitar Strings, Cust, 11.5-47

Martin® Authentic Acoustic® Superior Performance SP® Strings feature longer-lasting tension, six tin-plated core strings for a fuller, more balanced tone, faster response, and increased tuning stability. 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 brand of strings.

Characteristic:

• Wire Size: .0115, .014, .023, .028, .038, .047, Custom
• Bend the wire tighter, the wire more durable
• Tinned wire core