These guitar instrument repair accessories are made to fit most guitar music instrument. Made of , safe and durable to use, not easy to break or deform, long serving life. They will be perfect for you to use and replace. Features -Color: Silver -Material: Stainless steel, plastic -Size: About 11.00X4.50X3.50cm/4.32X1.77X1.38inch - workmanship and appearance, making it can match well with most guitar instruments. - These accessories are made of high grade material, which is durable for the long-term use. - Good polishing craftsmanship brings you smooth surface, comfortable touch, no burr. - Selected good material for the accessories, which is more durable and safe for your instrument. - Fine workmanship for the quick and precise tuning, which is reliable and professional. Package list: 4 x sets of knobs 2 x set of screws