CUH Wv-80 Plus High Quality Cordless Rechargeble Vacuum Window Cleaner Glass Squeegee Yellow Green Double-layered 11-inch blades made of long-lasting neoprene and edge-to-edge suction on any flat surface. A concave-convex soft plastic design makes user to work effectively and comfortably. Used for cleaning moist, smooth surfaces such as windows, mirrors or tiles. Light Weight and Easy to Use; Works Indoors and Outdoors. Ideal for most non-porous surfaces, can clean windows, mirrors, sky-lights, tiles, smooth granite and stone surfaces -- without leaving any streaks.