Description: new and Feature: This set includes 6pcs guitar machine heads, 6pcs screws, 6pcs washers and 6pcs screw nuts. Made of high- metal material, durable, rustless, sturdy and has a long service life. Replace your old and dirty tuning pegs and great for guitar tuning. Excellent workmanship, appearance and wonderful color. Easy and convenient to install and operate. Suitable for guitar lovers. Suitable for musical instruments: acoustic guitar, electric guitar and folk guitar. Specifications: Item Type: Guitar Machine Heads Material: Zinc alloy Size: 28mm/1.1in(as shown) Color: Silver, Black(Optional) Suitable: for acoustic guitar/electric guitar Quantity: 1 Set Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm 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! Package Includes: 6 x Guitar Machine Heads(3L+3R) 6 x Screws 6 x Screw Nuts 6 x Washers