Gator Grit 220 Grit Angle Sanding Sponge. This premium sanding sponge combines the performance of finishing sandpaper with the convenience of a sanding sponge. This allows the sanding sponge to sand faster and longer than traditional sanding sponges. Use the angle sanding sponge for detail and corner sanding. The 220 grit sanding sponge is used for finish sanding. The sponge will allow you to sand irregular shapes and contours. For use on wood, metal, fiberglass and painted surfaces.