Safety is the first the double design enables you to clean your window without needing to risk standing at the window. It also provides the safe string to ensure that the magnetic will not drop off from the window. Strong adsorption force - effective for double glazed windows Environmentally friendly - high quality ABS material, Natural Latex, NdFeB magnet. Unique design - double sided design, magnetic, it is very safe and convenient. Please choose the appropriate Version according to the thickness of the glass, otherwise it will be strong or not. Specification: Material: Plastic Color: Blue(3-8mm), Purple(5-12mm), Pink(15-24mm), Green(20-30mm), Yellow(30-40mm) Size: Approx. 13.5x12x8cm/5.31x4.72x3.15inch Package Includes: 1 Piece Double Sided Window Cleaner