Features Technical plastic: The shell of the potentiometer knob is made of technical plastic, lightweight and with good insulation. Easy observation: these knobs are marked with white lines, which is more convenient for viewing and safe to use. Applicable models: These knob caps are suitable for potentiometers such as V24YN, RV30YN, WX112, WX050, WTH, WH118, WX110, WX010, etc. Brass inside: The inside is brass, which has good resistance and corrosion resistance and prolongs the life of the knob. 50pcs in 1 set: Includes replacement knob caps for 50pcs potentiometer, sufficient quantity, easy to use and replace. Specifications: Item Type: Potentiometer Knob Product material: technical plastic + brass Product Model: BEM-A01 Fixed shape: fixed side screw Knob diameter: approx. 20mm/0.8inch Knob height: approx. 11mm/0.4inch Inner diameter of the knob: approx. 6mm/0.2 inch Product quantity: 50 pieces Application: for RV24YN, RV30YN, WX112, WX050, WTH, WH118, WX110, WX010, etc. Package List: 50 Potentiometer Knobs Package List 50 x Potentiometer Knobs