Non-Woven Depressed Center Disc, Abrasive Material Aluminum Oxide, Grade Medium, Overall Diameter 4 1/2 in, Series Rapid Blend NEX, Maximum Operating Speed 12, 000 RPM, Connector Size 7/8 in, Connector Type Unthreaded Hole, Abrasive Type Non-Woven, Color Brown, Grit 150 to 180. This item has been restricted from sale in the following state (s): []