1.The materials: silicon carbide. 2.The size: 230mm*280mm. 3.The delivery time: about 20 days. Product Name:waterproof abrasive paperTechnics:electrostatic strewingBacking:A/C weight paperBond:epoxy resinAbrasive:silicon carbideApplications:The paper is primarily intended for sanding and polishing automobile,furniture,leather,cases of electrical household applicances,and mechanical components. ...