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STR P/B LifeSpan Light MSP 7100 Martin

Electro-plated to resist corrosion, the SP Acoustic Strings have high tensile strength carbon steel round core that makes for increased durability as well as better and longer-lasting intonation. The proprietary treatment on all six SP strings will protect them from dirt and oils from your skin and other external elements which will make them last longer. Choose from gauges ranging from extra light to medium.

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