Flap Disc, Type 29, Disc Diameter 4 1/2 in, Mounting Hole Size 7/8 in, Disc Backing Material Fiberglass, Abrasive Material Ceramic, Abrasive Type Coated, Series GF, Backing Weight X, Max. RPM 13, 300 RPM. This item has been restricted from sale in the following state (s): []