Feature: PERFECT WORKMANSHIP:Exquisite looks with perfect workmanship and high-technology, good-looking, very easily matched for your bass guitar and also have good decoration effect.PRACTICAL:Closed design, avoid gear exposure, avoid rust and foreign influence, the string is more durable.These bass machine heads are mainly constructed of copper zinc alloy & steel material, anti-rust, high performance of stability and durability.GOOD FUNCTION:Tuning fast and accurately, difficult to be out of tune.This is absolutely the best choice for your bass.EASY TO USE:Complete set with other fixing accessories, easy to install.SUIT FOR:Ideal replacement parts for your bass guitar.Ideal to replace your old and dirty tuning pegs and great for bass tuning. Specifications: Condition: 100% Brand New Weight: Approx. 243g / 8.6oz Optional Color:Silver, Black Material: copper zinc alloy + steel Style: enclosed Single product size: 5.6 x 2.8 x 4.3cm/2.2*1.1*1.7in (height x width x depth) Tuning Pin diameter: Approx.0.8cm/0.3in Installed in Diameter (Corresponding Mounting Hole Diameter) : Approx.1.4 cm/0.6in Package list: 2 * Left Tuning Peg 2 * Right Tuning Peg 4 * Ferrule 4 * Screw