This single flat sander tool uses the hook & loop sanding sponges. These sponges are washable, tear resistant, and long lasting. They provide a built in bumper with the overlap at both ends of the tool to eliminate wall and ceiling damage, resulting in a professional finish every time. Sponges are available in 80 or 120 grit. Made and assembled in the U.S.A. Included is one, medium 80 grit sanding sponge.