Ernie Ball Earthwood Custom Medium 80/20 Bronze Acoustic Strings, 12.5-56

Ernie Ball Earthwood 80/20 Bronze Acoustic Guitar Strings are made from 80% copper, 20% zinc wire wrapped around hex shaped brass plated steel core wire. These acoustic guitar strings provide a crisp, ringing sound with pleasing overtones. Gauges .012.5, .016.5 .024w, .034, .046, .056