Size: Height: 18.5mm (0.72"); Outer Diameter: 30mm (1.18"); Inner Diameter: 6mm (0.23"); Color: Black; Material: Bakelite; Screw Fixing: Side Fixing; The package includes 10 potentiometer control knobs (with 20 set screws). Potentiometer knobs are important accessories for connecting to potentiometers, suitable for 6mm D-shaped shafts, and can be used for electric guitars, basses, audio, amplifiers, volume control, etc. Made of bakelite material, it has high reliability and durability. It also has a beautiful appearance, is small in size, and is easy to install, suitable for various different electronic devices and situations. Instructions for use: 1. Check the potentiometer model. 2. Insert the potentiometer knob cap onto the top of the potentiometer knob, rotate gently according to the direction, and check if the knob is securely fixed. 3. The sound effect can be adjusted by rotating the potentiometer knob cap. Precautions: When using the potentiometer knob, it is necessary to pay attention to the selection of the appropriate model and size, confirmation of direction and position, gentle and smooth operation, and prevention of water and dirt. ⭐Free Shipping⭐ Please check the actual photos for the product condition♪ Although it is a new and unused item, it has been opened for photography. Please understand that it is stored at home and simply packaged before purchasing (^ ^) Shipping is not available on weekends and holidays. Shipping will be after Monday. #Mii☻Click here for a list of products with no comments & immediate purchase OK!✨☜ uxcell Potentiometer Knob, Bakelite, 30x18.5mm, Volume Control Knob Cap for Guitar Bass, Volume Control, Mechanical Switch, Home Appliances, Audio, 6mm Hole, 20 Set Screws, Black, 10 Pieces 14-42 0761