... Rolls, Resin Over Resin, Electro-coated, Made of Aluminum Oxide and Silicone Carbide Backing: paper rolls Detailed Product DescriptionAbrasive ... Rolls, Resin Over Resin, Electro-coated, Made of Aluminum Oxide and Silicone CarbideSpecifications/Special Features:Materials:brown aluminum oxide, ... belt Applications it's designed for fast and easy sanding of various, and can be torn to exact lengths as ...