Check the listing for details. WH118 220K Ohm Variable Resistor Rotary Carbon Film Potentiometer w Knobs. Condition: New. Listed at 15.36 USD. Product Name: Carbon Film PotentiometerModel: WH118Material: Carbon film MetalResistance Value: 220K ohmTolerance: +/-20%Turn Number: Single TurnTerminals Number: 4Features: Round ShaftTotal Size: 28.5mm x 34.5mm/1.12 x 1.36 inch (D * H)Screw Thread Dia.: 9.89mm/0.39 inchShaft Diameter: 6mm / 0.24 inchShaft Length(do not include the Screw Thread parts): 9mm / 0.35 inchShaft Total Length 20mm/0.79 inchPackage Content: 1 x Carbon Film Potentiometer /1x KnobsKnobs Size: 24.6x19.8mm / 0.97x0.78 inch (D * H)Knobs Colors: BlackFeatures: 220K ohm, 4 Terminals, Single Linear, Suits Most Standard Knobs.（this item do not include Knobs)Top adjustment type and knurled shaft for easy operate in daily use.Main used to control electrical devices such as volume controls on audio equipment.Knurled shaft with split design for push-on knob. .