The Wool Pad cleaner has three side-by-side wheels with raised teeth. As the pad spins on the buffer, roll the Duo-Spur over the pad. It will soften and reshape the pad while pushing excess product out. The agitation and the buffer make cleaning fast and effortless. If your pad becomes caked while you are polishing, use the Wool Pad to quickly remove some of the excess product and then continue polishing.