3M 9090NA Drywall Sanding Screen 4.375 in x 11.25 in, 2-Sheet Medium-Grit
2 pack, 4-3/8" x 11", medium, waterproof silicon carbide, drywall sanding screen, used for sanding drywall joints & patching compounds & plaster to a fine finish, can also be used on wood, metal, plastic & painted surfaces, fits pole sanders & sanding blocks.