1、Mainly constructed of steel material, anti-rust, high performance of stability and durability. 2、Complete set with 3 left and 3 right machine heads and other fixing accessories, easy to install. 3、Tuning fast and accurately, difficult to be out of tune. 4、Exquisite looks with perfect workmanship and high-technology, good-looking, very easily matched for your guitar and also have good decoration effect. 5、Ideal replacement parts for your folk/electric guitar. Features: Mainly constructed of A3 steel material, anti-rust, high performance of stability and durability. Complete set with 3 left and 3 right machine heads and other fixing accessories, easy to install. Tuning fast and accurately, difficult to be out of tune. Exquisite looks with perfect workmanship and high-technology, good-looking, very easily matched for your guitar and also have good decoration effect. Ideal replacement parts for your folk/electric guitar. Specification: Condition: 100% Brand New and High Quality Material: A3 Steel + Plastic Color: Shown as pictures Type: 3R 3L Suit for: Folk/Electric Guitar Weight: Approx. 140 g Packing List: 6 x Guitar Machine Heads(3R 3L) 6 x Threaded Bushings 12 x Screws