set2: 6 x Guitar String Tuning Peg Tuner (3 for Left, 3 for Right) + 1 x Neck plate The neck plate connected electric bass or guitar neck, golden appearance atmosphere, back contains a plastic pad, with four screws, easy to install. Great Compatibility: Fits for almost all balladry guitars and electric guitars :with heavy duty internal gear Provides for finer tuning and greater stability Material: Metal/Metal+Zin Alloy Color: Gold Screw size:4mm Size:67x54mm Thickness:3mm Fit for:Electric guitar, bass(As long as the size fits) size:39.5 x 22 x 17mm Package Contents: 6 x Guitar String Tuning Peg Tuner (3 for Left, 3 for Right) 6 x Ferrule 6 x Threaded Bushing 10 x Screw 1 x Neck plate Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.