This is a EAG2206R 6" Velcro Dual Action Pad. Designed for use with Super-Tack velour-backed discs. Pads have a hook-face which allows for easy mounting & removal of Super-Tack discs & work on all standard DA type sanders. Designed for vacuum-assist sanding. Durable molded polymer construction is firm enough for flat surfaces, yet soft enough for curved areas. Maximum speed is 10,000 RPM.