The Pad Conditioning Brush is designed to clean and recondition foam buffing pads. When used, buffing ans polishing pads start to accumulate products. Waxes, polishes and compounds that are left on pads for extended periods of time are absorbed into the foam cell structure of the pad and can become "caked in". "Caked in" or dry product can scratch surfaces and limit the proper usage of the foam pad. Regular cleaning and proper care will keep your pads in premium shape to deliver superior results every time you use them. The Foam Pad Conditioning Brush is made with a set of stiff bristles that easily pull caked and dried product out of the foam pad.