Backing pad 2",3" for Rotary Polisher Max RPM: 15000 Size: 2" - 3" Backing pad 2",3" for Rotary Polisher For working with Rotary PolisherCustomized center water-feed holeIdeal for spot sanding, dent paint repair, glass repair.PSA or Velcro faceAvailable threads: 5/8"-11, M14-2, M16-2, M10-1.5Can work with thread adaptors for Drill Use. Backing pad 2",3" for Rotary Polisher