3M SCOTCH-BRITE PADS are aggressive, durable pads is an excellent choice for your heaviest cleaning, deburring and finishing applications. Very high density Scotch-Brite(TM) pad is super aggressive for quick stock removal. Cuts fast to remove coatings and corrosion in demanding cleaning and finishing applications. Performance similar to steel wool grade 4 without shredding, rusting, or splintering. Durable construction withstands extremely heavy use on the toughest surfaces. May be used by hand, with a hand pad block or on an in-line sander. Sold by the each.