Musiclily 6 Inline Guitar Locking Tuners Tuning Pegs Keys Machine Heads Set for Fender Stratocaster Telecaster Parts, Chrome Tuning machines Set for Acoustics and Electrics guitar;It will fit standard 13/32 inch (10mm) peg holes Material: metal Alloy; Gear ratio 15:1; Color:Chrome Locking tuners provide maximum tuning stability; Head size is 18mm width 6 in line tuners set; Nut,Ferrule,Screws included Package Includes: 6 x Guitar machine heads