Specifications: MaterialABS material, Natural Latex, NdFeB magnet Easy to Use: Triangular shaped magnetic glass wiper, with powerful internal magnet locking the two cleaning sides together,provide you a comprehensive cleaning to any place. When you move one side, the other one follows. Double side magnetic glass cleaner wiper,easy to clean and use. 3-8mm, suitable for ordinary single-layer glass, the total thickness of the glass cannot exceed 5mm 3-10mm, suitable for ordinary single-layer glass, the total thickness of the glass cannot exceed 7mm 7-15mm, suitable for single-layer thickened glass, the total thickness of the glass cannot exceed 11mm More Safety: It has strong double-sided magnetic, Comes with safe anti-falling rope,when you use this magnetic glass cleaner,the rope will be tied to your hand,never falling down,provide you a stable and safe cleaning experience. The double design enables you to clean your window without needing to risk standing at the window. High Quality: It's made with ABS material, Natural Latex, NdFeB magnet of premium quality to provide strong magnetic force.durable and long-lasting. Wide Usage: This Magnetic Glass Cleaner Wiper is effective for Single glazed windows 3-8mm thickness, perfect for home windows, car windows, greenhouse, .etc. Can be used for cleaning for windows, vehicle windows, sliding doors, shower screens, mirrors, any glass surfaces. How to Use 1.Keep the safety rope in hand to prevent the glass rub falling from high altitude. 2.Turn the glass rub open. 3. Soaked in water to allow the sponge to absorb moisture. 4. Add a little cleaner to the fiber cloth. 5. Align the glass rub, natural adsorption. 6.Start to wipe glass. Notices: Please choose the appropriate Version according to the thickness of the glass, otherwise it may not work or accidentally damage to your window.