Features: 1. Cleans the outside of your windows, while staying in your room. 2. For hard to reach windows, The only safe way to clean the outside of windows, which are wider than your arm length. 3. Effective for double glazed windows, with three type option, A type fit to 2-8mm window thickness, B type fit to 8-20mm window thickness, C type fit to 20-28mm window thickness. 4. Extra durable Includes two microfiber cloths for scrubbing heavy dirt and polishing 100% guarantee. 5. Please Choose the appropriate product version according to your window thickness. Cleans the outside of your windows, while staying in your room.