The 830 Folksinger® set has ball-end black nylon trebles and Golden Alloy wound basses. A special design, the nylon strings include a small ball attached to 1 end of each string. Easy to use, this eliminates tying each nylon string to the bridge and is suitable for both Spanish style folk and classical guitars. The 830S Super Folksinger® set has a black nylon treble ball end first string. The second and third strings are clear nylon wound on nylon and the wound basses are Golden Alloy.