Martin M550 Acoustic Guitar Strings, Phosphor Bronze, Medium, 13-56
No bells. No whistles. Just pure, singing tone. Martin Traditional strings are our flagship line that stands the test of time. Tried and true, they are designed to deliver consistent quality and tone with every set. Great for daily play and appropriate for all skill levels.
Gauges: 13, 17, 26, 35, 45, 56
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