This is a string winder that can be attached to electric drills and drivers that support hex bits. It fits most guitar and bass pegs. By attaching it to the tip of a drill, string changes can be done smoothly. It can also be done manually by setting it on the manual handle. Get a great deal by purchasing it together with items like guitar picks. ■Guitar Accessories >> #QONNYGuitarMaintenance ■Guitar Supplies List >> #QONNYGuitar ■Musical Instruments List >> #QONNYInstruments