Product Specification: Features: ·Aluminum oxide grain delivers a fast and long lasting cut. ·Open-coat produces an even and consistent scratch pattern. ·Special stearate coating is used to maximize resistance to clogging and pilling. ·6 inch diameter, suitable for use with random orbit sanders. ·Pre-punched with No- holes for uniform dust extraction. ·PSA Self Stick makes grit changes quick and easy, and lengthens the life of the abrasive. Material: Aluminum oxide Thickness: 0.1mm Diameter: 5 inch Application :Used to furniture, automobiles, yachts and other industries of metal and non-metallic materials of various complex surface rust, paint, deburring, solder joints grinding Package include: 10 x 80 Grit Sanding Discs 10 x 100 Grit Sanding Discs 10 x 120 Grit Sanding Discs 10 x 180 Grit Sanding Discs 10 x 240 Grit Sanding Discs 10 x 400 Grit Sanding Discs Total 60 pieces sandpaper assortment from rough to fine to satisfy almost all your general polishing requirements.: