Gator 3304 Silicon Carbide Drywall Sanding Screen, 80 Grit, 11-1/4" x 4-1/4"Gator Sanding Screen is ideal for finishing drywall prior to painting, feathering of joint compounds and spackling and "scuff" sanding painted walls before applying new paint. The nylon "open" mesh design allows sanding dust and debris to pass through, reducing clogging while the dual sided grit "doubles" the life of the sheet, simply turn it over and you have a brand new sheet to sand with. This waterproof screen can also be rinsed with water and