Martin Authentic Acoustic Extra Light SP Phosphor Bronze Guitar String Set

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. The impeccable standards for acoustic guitar tone are embedded in the string design and precision manufacturing process.

Key Features:

-String Gauge: .010, .014, .023, .030, .039, .047

-Tension: 135.8

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