Norton 9 x 11 in. 320-Grit Sandpaper Sheets, 20-Pack features heat-treated premium aluminum oxide abrasives that deliver exceptional durability and maintain sharpness longer for consistent finishing results. This 320 grit sandpaper provides superior sanding performance and a premium surface finish, making it i for use on all surfaces and coatings. The sheets are surface treated to resist clogging and tearing, ensuring a smooth sanding experience without transferring color. Each pack contains 20 sheets measuring 9 by 11 inches, designed to meet your sanding needs with reliability and efficiency. Model Number: