Check the listing for details. Universal Fader Knobs, Grey Mixer Fader Caps Plastic for DJ Console, 10Pcs. Condition: New. Listed at 19.38 USD. What is this?Upgrade your mixing experience with professional-grade fader caps! Our mixer console caps are suitable for most DJ controllers, audio mixers, and consoles and replace worn-out fader.What will I get?Material: RubberFit Hole Size: 4mm x 1mmBig Hole Size: 16mm x 5mmOuter Width: 7mm x 9mmLength: 20mmHeight:15mmColor: GreyIn the package of: 10 Pcs x Fader KnobAny advantages of this product?The mixer slider knobs are made from high-density plastic, these replacement caps resist wear from heavy use while providing the perfect balance of grip and smooth movement. The slot surface improves tactile feedback for smoother adjustments and scratch-proof durability.How to use it?No tools required! Simply snap onto existing slider potentiometers for an instant upgrade.What should I notice?Ensure your potentiometer shaft size before purchase.