Ernie Ball Earthwood Phosphor Bronze Acoustic Guitar Strings are made from 92% copper, 7.7% tin and 0.3% phosphorus wire wrapped around tin-plated hex-shaped steel core wire. Guitar FX Pedals & Accessories.
Ernie Ball Earthwood Phosphor Bronze Acoustic Guitar Strings (Extra Light 10-50)
Ernie Ball Earthwood Phosphor Bronze Acoustic Guitar Strings (Rock &Blues 10-52)
Ernie Ball Earthwood Phosphor Bronze Acoustic Guitar Strings (12-54)
Ernie Ball Earthwood Phosphor Bronze Acoustic Guitar Strings (11-52)
Ernie Ball Earthwood Nylon Classical Guitar Strings - Ball Ends - 28-42