Hook-and-Loop Disc Backup Pad, Product Type Pad, Backing Pad Type Hook-and-Loop, Attachment Not Applicable, Color Yellow, Material Rubber, Maximum Speed 3,000 RPM, Texture Not Applicable, Thickness 1/2 in, Outside Diameter 7 in, Compatible Surface Material Not Applicable, Compatible Tool Type Rotary Sanders, Compatible with Manufacturer Model Number Not Applicable, Application Not Applicable, Center Hole Thread Size 5/8 In.-11, Compatible with Grainger Part Number 2AZC9, 2EXY6, 2EXY9