Ernie Ball Earthwood Medium 12-String 80/20 Bronze Acoustic Strings, 11-52

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 .011 .011, .015 .015, .024w .010, .030 .014, .042 .022w, .052 .028