Aluminium Oxide Velcro Discs Grit: P36-P1200 Hole: 1, ... 180MM/7.0"X22MM 230MM/9.0"X22MM Aluminium Oxide Velcro Discs Application:-- Suitable for hook & loop salver ... weight paper, craft or latex paper, Norton paperMaterials: aluminum oxide, silicon carbide, zirconium oxide, zinc-stearateColor: white, brown, yellow, black, blueCoating: closed ... 5", 6", 7", 9"Grit: P36-P1200 Aluminium Oxide Velcro Disc