Surface-Conditioning Disc, Abrasive Type Non-Woven, Abrasive Material Aluminum Oxide, Backing Material Nylon, Backing Weight B, Coating Coverage Not Applicable, Grade Coarse, Grit 50, Overall Diameter 3 in, Quick Change System TR, Series Vortex Rapid Prep, Maximum Operating Speed 20, 000 RPM, Resistance Properties Load, Color Brown. This item has been restricted from sale in the following state (s): []