Editorial Review Wound Strings are 80% copper, 20% zinc wire wrapped around hex shaped tin plated steel core wire Plain strings are made of specially tempered tin plated high carbon steel The most popular acoustic guitar string alloy
Features 1) 3 Packs! 2) Made in the U.S.A. 3) Gauges .009*.009, .012*.012, .020w*.009, .026*.012, .036*.020p, .046*.026 4) Made from 80% copper, 20% zinc wire wrapped around hex shaped tin plated steel core wire. 5) Ernie Ball strings are hermetically sealed to ensure your strings stay as fresh as the day they were made.