IVY Classic's Medium/Fine Flex-Abrasive Extra Large Sanding Sponge is coated with aluminium oxide and is flexible for use on curved and flat surfaces. This sanding sponge is a convenient size to ensure easy grip while working. Use this sanding sponge on wood, metal, painted surfaces, plastic, fiberglass, plaster, drywall and for autobody finishing. This sanding sponge is durable and far outlasts traditional sandpaper - it can be rinsed and reused. This product features a medium/fine grit with 80 grit on the top surface and one side and 120 grit on bottom surface and other side. The sanding sponge is rectangular in shape with length of 9," a width of 3-3/8", and a height of 1". IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools.