The Makita Plastic Backing Plate, Hook & Loop (197922-4) is for use with Makita 5” polishers including the 18V LXT® Brushless Cordless 5" / 6" Dual Action Random Orbit Polisher (XOP02), and the 5” Dual Action Random Orbit Polisher (PO5000C), both sold separately. The Plastic Backing Plate is for buffing and polishing applications. It features a high quality, round design that is flexible for greater user convenience. The 197922-4 installs quickly and easily.