Musiclily Metric Heavy Metal Electric Guitar Dome Knobs for Fender Stratocaster Telecaster Electric Guitar Bass, Black(Pack of 4) Dome knobs for Tele,LP,Epiphone Style Guitar or Jazz bass,PB Style Bass 6mm Inner Diameter,Fits for 6mm diameter Shaft of domestic potentiometer and metric potentiometer Made by metal alloy With mounting screws and wrench Package included: 4pcs knobs