KBrakes are the best in Drum Kit Slide Prevention Technology KBrakes Universal System has 512 Stopping Points that dig into the carpet and lock your drums in place and stop them from sliding away from you as you play. Designed to attach to all of your kick drums, hi-hat, snare and cymbal stands. Equipped with a high impact rubber inserts KBrakes Universal System is prefect for 9mm-12mm kick drum spurs (threaded and non threaded) Remove the rubber insert to attach to 1/2" Ludwig Curved Spurs and larger spring loaded kick drum spurs KBrakes products are light weight, road worthy and extremely durable KBrakes gives your kick drum a larger foundation on which to play which creates maximum stability