Are you still trying to climb the ladder to open the tall windows?Are you still worried about how to clean the tall solar panels?This product is your ideal choice!This is a fully expandable water column cleaning system that can be connected to a pure water system or garden hose.★Features:▪ Multifunctional water spray brush, adjustable in height.▪Using reinforced aluminum alloy with high density, high hardness, not easy to rust, and light weight. It will not bend even if it is 10 meters long.▪ With steel buckle for easy installation and disassembly.▪Pure copper switch, corrosion-resistant and more durable.▪Universal design, the brush head can rotate freely.▪ Non-slip sponge handle.★Product parameters:Material: Aluminum + Carbon FiberBrush width: 35CMLocking method: twist lockWater supply hose: 20MSpecifications: 12FT / 3.6M, 18FT / 5.4M, 20FT / 6M, 24FT / 7.2M, 30FT / 9M, 36FT / 10.8M★Application: Window cleaning, photovoltaic panel cleaning, bus/external cleaning, large vehicles, trucks, trucks, caravans, ships, etc.★Please note:The manual measurement of this product may have an error of 1-3cm, which is a normal difference.