Manufacturers of quality bass and guitar hardwareGet even more out of your G&L or Music Man bass with the BT1! Allows your instrument to detune to a set key, usually E to D. This unit will fit in an 11/16 inch headstock hole and has an option for regular or short tuning key. The short tuning key option fits US made G&L and MusicMan basses while the standard key retrofits the Schaller BML tuner. Installation instructions and mounting hardware included.FeaturesD-Tuner Bass Tuning MachineQuantity: 1Fits 11/16 inch peg holeColor: NickelItem Number: 20100N