It is intended for use with drill drivers. The Polishing Sponge enables polishing various surfaces such as metal and varnish. Polishing sponge Foam with rubber backing pad • For Metal and Varnishes Specifications: Working diameter mm: 125 Materials: Coated material Materials in Detail: Lacquer Scratchproof lacquer NC lacquer PU lacquer Polyester lacquer UV lacquer Water-based paint