Disc Backup Pad, Abrasive Mount Type Hook and Loop, Connector Size Not Applicable, Connector Type Hook-and-Loop, Backup Pad Shape Square, Device Material Rubber, Density Not Applicable, Maximum Operating Speed Not Rated, Number of Vacuum Holes 6, Color Black, Overall Width 4 in, Overall Diameter 4 in, Product Type Disc Backup Pad, Compatible Manufacturer Part Number BO4556