Quick-Change Sanding Disc, Abrasive Type Coated, Abrasive Material Diamond, Backing Material Polyester, Backing Weight J, Coating Coverage Open, Grade Medium, Grit M74, Overall Diameter 1 in, Quick Change System TR, Series 6234J, Maximum Operating Speed 30, 000 RPM, Resistance Properties Water, Color Red, Package Quantity 10. This item has been restricted from sale in the following state (s): []