The DEWALT belt sanders have the following features:- Heavy-duty backing cloth- Resin bonding provides excellent grain adhesion and heat resistance for power sanding- High quality Aluminium Oxide grain for fast, aggressive stock removal fine finishing- Anti static bond and backing ensures more efficient dust extraction, improved finish and longer life. Applications:For all stripping, sanding and finishing tasks on wood, metal and painted surfaces.The DEWALT DEWDT3312QZ sanding belts (3) have the following dimensions:560 X 100 X 40g