Our 3M Hookit Half Round Pad is built for hand sanding where round abrasive discs can??? reach. Technicians simply wrap a 6??diameter 3M Hookit abrasive disc around the pad. Hookit hook-and-loop attachment keeps the disc stable on the pad during use. Its straight and curved edges, conformable medium density foam and 1/4??radius edge allow for effective sanding even in hard-to-reach areas.