Electric Acoustic Guitar Tuning Pegs Keys Kera Audio KLPS133 (3+3)Colour Silver Material Steel Guitar Tuners Configuration 3xL + 3xR Head width [mm] 17 Peg Length [mm] 18 Shaft diameter [mm] 6 Height from the base to the end of the spindle [mm] 27 Diameter above the spindle [mm] 10 Shaft length to string hole [mm] 23 The kit includes 6 x Guitar Machine Heads 6 x Ferrules Mounting screws