Check the listing for details. WH148 50K Ohm Variable Resistors Twin Carbon Film Taper Potentiometer 2pcs. Condition: New. Listed at 8.38 USD. Product Name: Carbon Film PotentiometerModel: WH148Material: Carbon film MetalResistance Value: 50K ohmTolerance: +/-10%Turn Number: Dual TurnTerminals Number: 6Features: Round ShaftTotal Size: 31mm x 17mm/1.22 x 0.67 inch (H * D)Screw Thread Dia.: 6.7mm/0.26 inchShaft Diameter: 6mm/0.24 inchShaft Length(do not include the Screw Thread parts): 13mm/0.51 inchShaft Total Length: 21mm/0.83 inchPackage Content: 2 x Carbon Film PotentiometerFeatures: 50K ohm, 6 Terminals, Dual 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. .