1 X 18 Inch Knife Sharpener Sanding Belts Assortment for Belt Sander, Coarse Grit P80 / Medium Grit P240 P400 / Fine Grit P600 P800 P1000,Fits Ken Onion Blade Grinder Attachment - Premium Silicon Carbide metalworking material designed for knife sharpening and grinding. - Super flexible heavy Y weight waterproof cloth backing provides extra strength for working with metal. - Precision bi-directional tape joint, resin over resin bonding for extended performance, anti-clogging stearate to resist loading up to provide a better sanding and working in Wet or Dry environment. - Compatible with Work Sharp Tool & Knife Sharpener Ken Onion Blade Grinder Attachment . Package included 4 x 80 Grit 4 x 240 Grit 4 x 400 Grit 4 x 600 Grit 4 x 800 Grit 4 x 1000 Grit