6pcs quality chrome locking machine heads for electric guitar or acoustic guitar. High quality zinc alloy material, equipped with screws, bushings and ferrules for easy installation and remove The fully enclosed locking tuner provides maximum tuning stability, keeping your guitar in tune, Great replacement for the , broken tuning pegs. Type:GC401P Location: 6 Right Head size is 17.5mm(0.69in) width. color:As shown Material:Zinc alloy size:3.9 x 2.2 x 2.2cm Package Contents: 6 x Right Guitar Machine Heads 6 x Ferrules 6 x Screws 6 x Threaded bushings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.