Are you looking for a practical and inexpensive solution to cleaning those tall windows or solar panels? This product is an ideal choice! This is a fully expandable, water-filled cleaning system. Can be connected to a pure water system or a garden hose. Product parameters: Material: aluminum Brush width: 37CM Locking method: twist lock Water supply hose: 20M Specifications: 12ft 3.6m, 18ft 5.4m, 20ft 6m, 24ft 7.2m, 30ft 9m, 36ft 10.8m Scope of application: window cleaning, photovoltaic panel cleaning, bus exterior cleaning, large vehicles, trucks, caravans, boats, etc. Soft feather bristles ensure a safe and clean surface. Users clean windows or decks or other larger areas around the house. The soft and padded handle increases comfort and is insulated from the cold water of the handle.[Use]: Suitable for cleaning high windows, solar panels, cars, trucks, trucks, caravans, greenhouses, ships, bridges, decks, etc. [Non-slip handle]: Non-slip sponge handle, soft handle increases comfort, and cold water insulation on the handle. It can be easily adjusted with the included gooseneck attachment. Easily remove dust and stains from every corner. [Material]: It is made of strong, lightweight aluminum and is used in the aerospace industry. Very durable and soft spring bristles ensure safe surface cleaning. [Water Cleaning Brush]: 32cm wide brush head with water hole, brass hose connector can be easily connected to the garden hose (quick connector, not included) via hose connector in any hardware store. [Adjustable]: The length of the telescopic rod can be freely adjusted to clean the highest point and inaccessible corners. It is freely connected by aluminum tubes and fixed with steel buckles, perfectly closed and easy to install and disassemble.