Ernie Ball Earthwood Folk Nylon 80/20 Bronze 28-42 Acoustic Guitar Strings, Ball-End
Used on classical guitars. Plain strings are made of a solid nylon filament. It is similar to, but not the same as, the nylon used for fishing line. First, second and third strings are clear, ball end. Gold ball ended fourth, fifth, and sixth wound strings are made of 80/20 bronze alloy wrapped around a nylon floss core.