Features: 1.The double design allows you to clean your window without risking standing by the window. It also provides the safe string to make sure the magnetic doesn't fall out of the window. 2. The powerful inner magnets lock the two cleaning sides together so that when one side moves, the other side follows. 3.It can be used to clean windows, aquariums, skylights, patio doors, bedroom windows, and even shower walls, mirrors, and tiles. Specification: Material: Plastic, Magnet, High Quality Rubber Color: Yellow Blue Thickness: 3-8mm Application: The thickness of the glass must be less than 8 mm. size: 9.7 * 10.5 * 3.1cm / 3.81 * 4.13 * 1.22in Package list: 1 * glass cleaner 2 * cotton wool cleaning