50Pc 2 Inch Medium Non Woven Surface Conditioning Quick Change Disc Specification: Diameter: 2 Inch Grit/Grade: Medium Disc Type: Quick Change Disc Abrasive Type: Non-Woven Abrasive Material: Aluminum Oxide Backing Material: Nylon Scrim Maximum RPM: 25000 Recom. RPM: 3800-5000RPM Compatibility: Maroon surface conditioning discs are uitable for stainless steel, alloys, non-ferrous materials, plastics; useful for auto body and automotive work. Features: Each disc features a thick layer of grain attached with a layer of resin bond, provides more service life. Package Includes: 50Pcs 2 Inch Sanding Discs