![Black Metal Knob - 14X22MM](http://shops.wizrobotics.com/cdn/shop/products/BLACK_METAL_KNOB_-_14X22MM_{width}x.jpg?v=1562226854)
Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. This knob has a height of 14mm and a diameter of 22mm.