Quick Change Disc Backup Pad, Abrasive Mount Type Quick Change, Abrasive Mounting Quick Change System TR, Connector Size 1/4 In. -20, Connector Type Threaded Hole, Backup Pad Shape Round, Device Material Rubber, Density Soft, Maximum Operating Speed 20, 000 RPM, Number of Vacuum Holes Non-Vacuum, Color Black, Overall Length 7 5/8 in, Overall Width 2 in, Overall Diameter 2 in, Overall Thickness Not Applicable, Product Type Disc Backup Pad. This item has been restricted from sale in the following state (s): []