This powerful, two-sided Magnetic Glass Cleaner Brush features internal magnets that lock the two cleaning sides together. When you move one side the other one follows. The innovative Magnetic Glass Cleaner Brush can be used for cleaning windows, fish tanks, skylights, patio doors, shower doors, mirrors and even tile. All you need is warm water and plain detergent to clean desired surface. The Magnetic Glass Cleaner Brush features a Safety Cord on one side to prevent dropping. Why You'll Love It Comfortable and easy to use Cleans interior and exterior of windows simultaneously Light and manageable design Suitable for cleaning windows, fish tanks, skylights, patio doors, etc. Product Details Made of Polypropylene Powerful magnet, cleaning rubber and 1 polyester sponge Safety Cord Approximate Measurements: 4.5 x 2.15 x 4.3 inches (11.5 x 5.5 x 11 cm) Maximum glass thickness: 0.19 inch (0.5 cm) NOTE: The Magnetic Glass Cleaner Brush does not work on double glazed windows.