RYOBI introduces the 5 in. Backing Pad for Orbital Sanders. This backing pad is compatible with all RYOBI 5 in. random orbit sanders. The backing pad can be used with any PSA sandpaper type. To learn more about RYOBI tools, go to RYOBItools.com and check out RYOBI Nation. Includes one 8-hole pattern 5 in. backing pad.