Description: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.this item include Knob easy for you to use Features:Product Name: Carbon Film PotentiometerMaterial: Carbon film MetalTurn Number: Single TurnTolerance: +/-20%Terminals Number: 3Features: Round ShaftModel: WH148Resistance Value: 10K ohmShaft Diameter: 6mm/0.24 inchShaft Length(do not include the Screw Thread parts):14.5mm/0.57 inchTotal Length: 29mm/1.14 inchScrew Thread Dia: 6.8mm/0.27 inchKnob Size: 16.7 x 14.5mm/0.66 x 0.57 inch (L*D) Package Content:1Pcs x Carbon Film Potentiometer1Pcs x Aluminum Alloy Knobs