ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 13-56

Earthwood Medium Phosphor Bronze Acoustic Guitar Strings. Made from 92% copper, 7.7% tin, 0.3% phosphorus wire wrapped around tin plated hex shaped steel core wire. These guitar strings have a light orange, gold color and provide a mellow, ringing sound, with excellent clarity. Gauges .013, .017, .026, .034, .046, .056.