Ernie Ball Earthwood Phosphor Bronze Custom Light acoustic guitar strings are 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: .011.5, .015.5, .022W, .032, .044, .054