Item Type: Locking Guitar String Tuning Peg_x000D_ Colour: Gold_x000D_ Material: Small Alloy Handle + A3 Steel Plate + Free-Cutting Iron Pillar + Copper Gear_x000D_ Handle Width: Approx. 17.5mm / 0.7in 1With locking function, the tuner can prevent the gear from being exposed to the air and reduces rust. 2These guitar string tuning peg enables convenient and accurate guitar strings adjustment, very practical. 3The tight and firm fixing allow the guitar to maintain the pitch, which adds more enjoyment to guitar playing. 4Adopting premium alloy material, all the the 6 string tuner heads are not easy to deform, very durable. 5The universal size is suitable for almost all acoustic guitars and electric guitars. 6 x Locking Guitar String Tuning Peg 6 x Screw