These excellent quality hook and loop 5″ random orbit sanding discs from Klingspor are available in 80 grit to 240 grit sizes and are sold 50 per box. The discs have the Festool 9 hole pattern to fit a number of their sander pad patterns and perform similar to the Festool “RUBIN” abrasives. They were developed for natural wood, wood composites and veneers and have a special coating which sheds wood fibers. Use on hardwoods like oak or maple, soft woods like pine or fir, tropical woods like ebony or teak, as well as on wood-based products. Aluminum Oxide, Synthetic Resin, Closed Coated.