45 degree drywall sand screens designed specifically for use with drywall compound, these unique sunscreens have a smaller mesh that prevents scratching walls. 45 Degree mesh angle offsets typical angle of sanding head in use. Precut to 3-1/4-Inch by 11-1/4-Inch. Shake or rinse to clean. For use with any hyde pole, hand or vacuum sander. 25-pack.