Cleans the outside of your windows, while staying in your room. For Hard To Reach Windows, The only safe way to clean the outside of windows, which are wider than your arm length. ? Effective for double glazed windows, 0.8 inch Up To 1.1 inch or 5-13 mm, thickness. ? Extra durable Includes two microfiber cloths for scrubbing heavy dirt and polishing ? 100% guarantee. If you don?t want the Glider for any reason we will refund you its price. Features: Magnetic double sided window cleaner. Clean your windows quickly and effectively Wash and dry both sides of the windows at the same time Get twice the result with just half the effort. Can be used for sliding doors, windows, shower screens, mirrors, any glass surfaces... Operation process can refer to the video Specifications: Product: Double Sided Window Cleaner Color: As picture Material: plastic + Magnetic + Rubber Applicative Range: 3-8mm 5-12mm 15-24mm 20-30mm glass