A Pegvinder or string crank is an invaluable little tool when changing the strings on your guitar. Put it on the tuning screw & crank and the string sits there on a small kick! The model also has a notch to easily get the pegs that hold the strings in place in the bridge of an acoustic guitar. Specification 4119: Color: Blue Material: Plastic Model designation: P04119 White Ernie Ball logo Easy help when changing strings Price per piece