Martin® Authentic Acoustic® Superior Performance SP® strings feature higher tensile strength and tin-plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability.

Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. That's why we make our own.

Key Features:

• Higher Tensile Strength
• Tin-Plated Core Wire
• Balanced Tone
• Quicker Response
• Increased Tuning Stability
• Gauge: Light
  Tension: 167.3
  E: .012
  B: .016
  G: .025
  D: .032
  A: .042
  E: .054

What's in the box:

• 1x Authentic Acoustic SP Guitar Strings 80/20 Bronze