Description Diabloâs new 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. Hook & Lock⢠backing allows repeated attachment and removal of Diablo SandNET⢠sheets. Included with the Reusable Hand Sanding Block are five SandNET⢠sheets, ranging from coarse/removal to ultra-fine finish. The reusable SandNET⢠nylon design is easy to clean and reuse multiple times, simply shake, vacuum or rinse to remove any build up.