Check the listing for details. 5 x Potentiometer Control Knob Knurled Shaft Hole Volume Rotary Switch Knobs 6mm. Condition: New. Listed at 12.86 USD. About the product:The potentiometer knob refers to the twist knob installed on the potentiometer, which is mainly used for the volume. Widely used in multi-turn linear potentiometers, audio equipment, most potentiometers on the market, etc.Good choice for you:The knob has a knurled design around it, which can increase friction when turning and is not easy to slip off.Specification:Material: Aluminium AlloyShaft Hole Diameter: 6mm / 0.24"Size: 13 x 17mm / 0.51 x 0.67inch (D*H)In the package of: 5 Pack x Potentiometer Rotary KnobsEasy to install:The 6mm round shaft can be easily pushed in. You can rotate it 360 degrees for easy control of the potentiometer.Tips:Please kindly note that the potentiometer is not included here.