SandBlaster No-Slip Grip 11 In. x 9 In. Advanced Sanding Sheets. This premium sandpaper makes sanding surfaces a breeze with its No-Slip Grip backing and high-quality materials. Each large sheet is perfect for customizing to the need, and its unique coating resists clogging. Sharp and synthetic minerals cut fast, stay sharp and resist clogging. Whether sanding wood, drywall, or metal, each sheet can be used on wet or dry surfaces, and the durable backing stands up to the job. Can be used by hand or with sanding block. Dimensions: 11 In. x 9 In. Grit: 320 Grit Grade: Very Fine Material: Aluminum Oxide