Feature: 1. With these open tuning pegs, you can quickly and accurately adjust the guitar strings, very easy. 2. Including 3 left tuning pegs and 3 right tuning pegs, meeting your various guitar tuning needs. 3. The metal tuning head set suits perfectly for both acoustic and electric guitars, very practical. 4. The gears can hold steadily, and don't slip or loosen the strings, causing the tone to change. 5. Made of metal, has heavy-duty internal gear, single-span steel column, and oval handle head. Specification: Item Type: Guitar String Tuning Peg Material: Large Zinc Alloy Semicircular Shank + A3 Steel Plate + Easy-Cutting Iron Pillar + Copper Gear Gear Ratio: 1:18 Features: Divided into left and right. . Package List: 6 x Guitar String Tuning Peg6 x Ferrule12 x Screw Note: For the electric and acoustic guitar of the right size, please choose the right guitar tuning according to the size drawing.