Item Type: Guitar Knob Pointer Washer_x000D_ Material: Metal 1MAIN PURPOSE: These metal washers are mainly used to support electric guitar knob pointers, which have good shock absorption and protection. 2METAL MATERIAL: Made of excellent metal material, with high hardness, corrosion resistance, not easy to deform or wear, and has a long service life. 3STANDARD SIZE: These electric guitar washers are ring shape design, which has standard opening size, easy to install, and has good compatibility. 4GLOSSY FINISH: The potentiometer pointer washer has glossy finish, and will not hurt hands when installed or damaging the surface of the guitar. 510PCS IN 1 SET: Include 10pcs guitar knob pointer washers, sufficient in quantity, easy to install and replace, can directly replace old or damaged.10 x Guitar Knob Pointer Washers