Remember when the surface of your wood had a nice and smooth finish? The WEN 120-Grit 4 x 36-Inch Belt Sander Sandpaper Package includes ten pieces of high-quality sandpaper. This paper is designed to fit with the WEN 6515 1 x 30-Inch Belt Sander with 5-inch Disc, but also has a universal design to allow for compatibility with many other models of 1 x 30-inch belt/disc sanders. Remember when your sandpaper provided maximum performance on wood, metal, plastic, and many other materials? Remember WEN.