... for ship, automobile, furniture, aviation.. Product Description:velcro abrasive disc Blue velcro abrasive disc be fixed onto electrical or pneumatic tools to ... : Resin over resin Coated material: Aluminum oxide Dimension ( diameter): 4"(100mm), 4.5(115mm), 5" (150mm), 6"(150mm), 7"(180mm) .Grit ...