Feature:1. 50Pcs in 1 Set: Includes 50pcs potentiometer dial control knob, with sufficient quantity, easy to use and replace.2. Applicable Models: Suitable for RV24YN 20S, RV24YN 30S, WTH118 2W 20S, WH118 2W 20S and other potentiometers.3. Plastic Shell: The potentiometer knob shell is made of engineering plastic, which is light in weight and good in insulation.4. Brass Shaft: The hole shaft is made of brass, which has good strength and corrosion resistance, not easy to rust.5. Standard Size: These potentiometer knobs have standard sizes, stable installation and good adaptability.Specification:Item Type: Potentiometer KnobModel: BEM-C1Material: Engineering plastic + brassKnob Diameter: Top end approx. 15mm / 0.6in, bottom approx. 18mm / 0.7inKnob Height: Approx. 20mm / 0.8inKnob Inner Diameter: Approx. 6mm / 0.2inProduct Quantity: 50pcsApplication: Suitable for RV24YN 20S, RV24YN 30S, WTH118 2W 20S, WH118 2W 20S and other potentiometers.Package List:50 x Potentiometer KnobsNote:Please allow 1‑3mm error for manual measurement