Detailed Product Description Sanding Paper With Velcro Or PSAMaterials:Abrasives:aluminium oxide or silicon carbideBond:resin over resin Paper:C,D,E-weightCloth:J,X,Y-weightBacked:velcro or PSAApplication:It is fixed on hard rubber disc of pneumatic or electric tools.Grinding and polishing for wood,paint and metalGrits:24-36-40-60-80-100-120-150-180-220-240-280-320-400Size:230x280mm