Quick-Change Sanding Disc, Abrasive Type Coated, Abrasive Material Ceramic, Backing Material Polyester, Backing Weight 3-Ply, Coating Coverage Closed, Grade Coarse, Grit 60, Overall Diameter 3 in, Quick Change System TR, Series Blaze R980P, Maximum Operating Speed 20,000 RPM, Color Orange, Package Quantity 25