This item is a set of 6 pieces of semiclosed guitar tuning pegs machine heads, which are adopted with strong metal with great endurance and practicability. These tuners are perfect for giving your Strat, Tele, or any other 6 in line electric guitar an updated look. The pegs are used to fix strings and improve the sound of strings. They hold tight. These make string changes super fast and super simple. They boast a sharp black finish and a 1:14 gear ratio, durable and highly reliable for easy, smooth, and precise tuning. The set comes with 6 pcs ferrules(8 mm diameter) and 12 pcs screws, easy to install. Professional design, exquisite manufacturing process and accurate grinding practical use and elegant appearance. perfect instrument parts for acoustic and electic guitars. Specifications: Colour: black Material: alloy Size: 44 * 29 * 39mm Package Contents: 6 x string buttons 6 x round tube 12 x Screws 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.