Quick-Change Sanding Disc, Abrasive Type Coated, Abrasive Material Aluminum Oxide, Backing Material Polyester, Backing Weight YF, Coating Coverage Closed, Grade Extra Coarse, Grit 36, Overall Diameter 3 in, Quick Change System TS, Series 361F, Maximum Operating Speed 20, 000 RPM, Resistance Properties Heat, Color Brown, Package Quantity 50. This item has been restricted from sale in the following state (s): []