Fiber Disc, Abrasive Type Coated, Abrasive Material Aluminum Oxide, Backing Material Fiber, Backing Weight Not Applicable, Grit 50, Overall Diameter 4 1/2 in, Series Fiber Disc, Maximum Operating Speed 20, 000 RPM, Connector Size 7/8 in, Connector Type Unthreaded Hole, Color Red, Grade Coarse, Package Quantity 25. This item has been restricted from sale in the following state (s): []