Phosphor Bronze Light 11-52 for steel stringed acoustics. Ernie Ball Earthwood Phosphor Bronze 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. 2148 Earthwood Phosphor Bronze Light:

    E: 11
    B: 15
    G: 22 wound
    D: 30 wound
    A: 42 wound
    E: 52 wound