Tone, playability, reliability and quality are what you look for in a good instrument. Why not demand these features from your strings? Ernie Ball strings are made from the finest materials so you get quality and consistency in every set. Made from 80% copper, 20% zinc wire wrapped around hex shaped tin plated steel core wire. The most popular acoustic string set provides a crisp, ringing sound with pleasing overtones.   Gauges: .010; .014; .020w; .028; .040; .050