Diablos Reusable Hand Sanding Block maximizes sanding performance by enabling professional users to sand flat and contour surfaces with one tool. This premium foam tool includes two sides: cushioned for controlled material removal in contour sanding, and dense for aggressive material removal on flat surfaces and 90 Deg. corner sanding. Fits comfortably in the hand for consistent results and maximum performance. 3-2/3 In. W x 9 In. L. Hook Lock backing allows repeated attachment and removal of Diablo SandNet sheets for a consistent secure connection. Included with the Reusable Hand Sanding Block are five SandNet sheets, ranging from coarse/removal to ultra-fine finish. SandNet clog-reducing nylon design for less dust build-up. The reusable SandNet nylon design is easy to clean and reuse multiple times - simply shake, vacuum or rinse to remove any build up. Includes five SandNet sheets: (2) 80-Grit for Coarse/Removal, (2) 120-Grit for Medium/Surface Prep and (1) 220-Grit for Ultra Fine/Finish. Ideal for wet and dry sanding.