Surface-Conditioning Disc, Abrasive Material Aluminum Oxide, Grade Coarse, Overall Diameter 4 1/2 in, Series Rapid Prep AVOS, Maximum Operating Speed 13, 000 RPM, Connector Size 7/8 in, Connector Type Quick Change, Abrasive Type Non-Woven, Backing Material Fiber, Coating Coverage Open, Color Brown. This item has been restricted from sale in the following state (s): []