Light 6 string set for acoustic guitar from SP series with molecular level treatment that is designed to provide excellent tone, clarity, and response. Strings are made from steel core with 80/20 bronze winding which provides a warmer sound than 92/8 phosphor bronze and is suited for strings that have deep, rich basses and bright trebles. They are also resistant to corrosion and repel dirt and sweat better than non-treated strings. Silk wrapping on the ends provides tighter seating of the string at the bridge pin and helps to reduce wear on bridges and bridge plates. Set ensures maximum string life and a clear, rich, and exciting tone. Gauges: .012, .016, .025, .032, .042, .054.