Usany 2+2 Bass Vintage Open Gear Tuner Tuning Keys Pegs Machine Head Right Hand for Jazz P Bass Guitar Parts, Gold Alloy metal made,plating finish; Color: Gold For Economy Precision Bass or Jazz Bass Tuning Key.The bushing inner diameter 14.20MM, outside diameter 18.25MM, peg diameter is 13.85MM, peg length is 30.5 MM. Nut,Ferrule,Screws are included. Open gear style, you can assemble it so that custom your own side. Package Include: 4 x Bass Tuning Pegs; 4 x ferrules; 4 x screws(2R+2L)