Check the listing for details. 5Set 500K Ohm Rotary Potentiometer WH138 3 Pin Variable Resistor with 24mm Knobs. Condition: New. Listed at 14.52 USD. What is this?This rotary potentiometer combines both variable resistance and a switch, designed for circuit control in electronic projects. It facilitates smooth adjustment of electrical parameters, making it suitable for dimming LED lights, controlling motor speed, adjusting audio volume in amplifiers, and managing power in industrial control panels.What will I get?Rotary PotentiometerMaterial: MetalColor: BlackResistance Value: 500K OhmResistance Tolerance: ±20%Type: Single Linear (Type B)Overall Size: 30.5 x 24.5 x 44 mm / 1.2 x 0.96 x 1.73 inch(L*W*H)Shaft Size: 20 x 6 mm / 0.79 x 0.24 inch(L*Dia)Knob Size: 24 x 15 mm / 0.94 x 0.59 inch(Dia*H)In the package of: 5Pcs x Potentiometers, 5Pcs x Knob Caps, 5Pcs x Washers, 5Pcs x Nuts.