ERNIE BALL 2003 ACOUSTIC 12-54 Strings

Ernie Ball Earthwood 80/20 bronze acoustic guitar strings are made from 80% copper and 20% zinc wire, wound around a hexagonal brass-plated steel core wire. These acoustic guitar strings produce a crisp, ringing sound with pleasant overtones.
String gauges: .012, .016, .024w, .032, .044, .054