Scotch-Brite(TM) Radial Bristle Brush, 7 5/8 in x 1 in x 1 1/4 in 400 with Flange, 2 per case Durable radial brushes can be used to replace wire brushes. Cleans with minimal pressure. Works on a variety of coatings and is a safe alternative to wire brushes. Abrasive mineral: aluminum oxide and Cubitron(TM) Abrasive grain. Package includes a universal benchmotor adaptor.