Detailed Product Description Abrasive Disc 1) Article:Abrasive Velcro Disc 2) Applicability:Vibration and mechanical polishing for the surface of metal,wood and so on. 3) Specification: DiaBoreAbrasive Grit 100mmAt will Brown Fused AluminaSilicon Carbide40#60#80#100#120#150#180#240#320#400#600#800#125mmAt will 150mmAt will 4) Other variety can be ordered.