270PCS Sanding Discs Pad Variety Kit270Pack 2inch Sanding Discs Pad Variety Kit for Drill Grinder Rotary Tools Die Grinder Accessories with 1 8"&1 4" Shank Backer Plate, Sanding Pads Includes 36 3000 Grit Product description A special soft PU Foam adapter Pad has been developed for this Kit, you can easily install the Hook Loop sandpaper on the Black Disc Pad Holder, so that your can do more with die grinder, Time is Money! Grit material: Aluminium Oxide, Wool, Zirconia, Nylon