Ideal kit for polishing， buffing， and detail work.7" wheel pad with 5/8" thread， suitable for velcro type polishing & sanding.7" Synthetic velcro attachment polishing bonnet (made of super clean effect， with extra fine surface).7" Soft wool bonnet with string attachment (made of special clean effect and soft material， easy to clean).Package Included:1pcs 5/8" Thread Backer Plate1pcs 7" synthetic Wool Polishing Bonnets3pcs 7" Soft wool bonnet with string attachment