Ernie Ball Earthwood Medium 12-String 80/20 Bronze Acoustic Guitar Strings - 11-28 Gauge

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.011.011,.015.015,.024W.010,.030.014,.042.022W,.052.028.'