Mainly constructed of steel material, anti-rust, high performance of stability and durability.Used to fix strings and improve the sound of strings. Complete set with 3 left and 3 right machine heads and other fixing accessories, easy to install. Essential replacement for the old, worn or broken tuning pegs for electic guitars. Suitable instruments: Strat / Tele / electric guitar, etc. Exquisite looks with perfect workmanship and high-technology, good-looking, very easily matched for your guitar and also have good decoration effect. Material:A3 steel colour:Golden Package Contents: 6 * Guitar Knob (3L&) 6 * Ferrule 12 * Screw 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.