Check the listing for details. 5pcs Potentiometer Knobs,Rubber Guitar Volume Tone Rotary Knob(Blue White). Condition: New. Listed at 12.51 USD. What is this?Volume control knobs are suitable for various electronic devices, such as electric guitars, bass, dimmers, potentiometers, power amplifiers, synthesizers, audio speakers, mixer boards, amplifiers, audio, encoders, etc. Bass knobs can be used to control the effects of various functions, such as volume, speed, and voice.What will I get?Potentiometer Control KnobsMaterial:RubberColor:Blue WhiteSize:6mmx15mmx19mm/0.24 inchx0.59 inchx0.75 inch(IDxODxH)In the package of:5Pcs x Universal volume Rotary KnobAre there any advantages of the product?These knobs are made of rubber material, which is sturdy, corrosion-resistant, high-temperature-resistant, wear-resistant, and anti-deformation, ensuring long-lasting durability and reliability. The buttons have a beautiful appearance, small size, and easy installation.