The Rocket Sanding Kit is designed to offer optimal sanding results on flat, contoured or irregularly shaped surfaces. They are flexible, easy to use and suitable for a variety of surface including metal, wood, plaster, plastic, and fibreglass. The sanding sponges are a quick and easy solution for big or small jobs. Rocket Sanding Sponges also come in a Medium or a Coarse grit. The Sanding kit base is made from a hook and loop Velcro to ensure quick interchanges in between changing sandpaper.