The Nano Skin AutoScrub Medium Grade Wash Mitt is a great alternative to clay bars, one side is a microfiber material, the other is a is a polymer rubber. The rubber will safetly remove surface contaminates from your vehicles surface, whether its paint, glass, moldings, fiberglass or plastic. The rubber polymer technology will help remove light tree sap, water marks, road grime and other extra surface contaminants easily.