Features:Guitar 3L3R Open string universal size button tuning pegs tuners machine heads knobs. Made of solid metal, heavy duty internal gear, durable, anti-rust to use. Surface with White plastic buttons, ideal for your classical guitars. Easy to install, ideal for replacing old or dirty tuning pegs, guitar tuning. Sealed closed design, heavy duty internal gear, double hole steel column. Replacement parts for acoustic guitar parts. Package Includes:6 x Guitar String Tuning Peg Tuner Machine Head6 x Ferrule12 x Screw Specifications:Material: MetalColor: Silver ColorPackage Weight: approx.110gSize: As The Picture Shows note:Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you