... Backing: paper rolls Detailed Product DescriptionAbrasive Paper Rolls, Resin Over Resin, Electro-coated, Made of Aluminum Oxide and Silicone ... metal, wooden,wall and so on AdvantagesHandy rolls are packed in a protective, convenient dispenser which eliminates costly ... with the lowest competitive price . Abrasive Paper Rolls, Resin Over Resin, Electro-coated, Made of Aluminum Oxide and Silicone Carbide ...