3M Scotch-Brite 7447B Pro Hand Pad, Very Fine Grade, Bulk Pack of 60, 6 in x 9 in, No Perforations, Aluminum Oxide, Load Resistant, General Purpose Sanding, Surface Activation, Pre-Paint ScuffingHIGH PERFORMANCE PAD: Takes less time to prep surfaces and lasts long PERFORATED FOR CONVENIENCE: Center perforation lets you select the right size for the job MULTIPURPOSE FINISHING PAD: Very fine aluminum oxide abrasive preps for paint, removes corrosion, cleans, finishes, grains, denibs, and defuzzes WIDE RANGE OF SUBSTRATES: Suitable for use on metal, wood, plastic, ceramics, porcelain, glass, rubber, and composites COATED FOR LOAD RESISTANCE: