Abrasive Velcro Disc Base:latex paper Bond:resin over resin Abrasive:zinc-stearate white aluminum oxide Size:100-430mm; ES04015 Abrasive Velcro DiscBase: latex paperBond: resin over resinAbrasive: zinc-stearated white aluminum oxideSize:100-430mm;Grit: 80-600#Interface: velcro or vinyl Abrasive Velcro Disc