PRPFESSIONAL WINDOW/SOLAR PANEL CLEANING BRUSH HEAD WITHOUT POLE:A very durable design idea with a high-density brush plate, thick bristles and excellent materials. 60mm (2.36in) long bristles can easily handle a variety of cleaning tasks. Featuring 4 copper water jets to cover the entire area of the bristles, the copper water jets are you don't need to worry about corrosion and rust.You can have this great brush for a long time to clean household. SOFT RUBBER EDGE (brush-350): The soft edges provide a good measure of protection, so you don't have to worry about damage to glass and other fragile surfaces even if you touch them during use. LIGHTWEIGHT BRUSH HEAD: In providing as much width as possible, the brush head is manufactured in a larger size while guaranteeing excellent quality to increase the efficiency of your use. brush-550 is very efficient when cleaning photovoltaic panels because it is large enough not to feel fatigue even after a long time of use. AMERICAN THREAD AND ANGLE ADAPTER: The thread of the brush head is American thread, the specification is 3/4 ACME thread, only need the top of your telescopic pole for this specification, then it can be matched perfectly.Angle adapter can provide great convenience for your use, because the different angle can meet the different use scenarios. MULTI-FUNCTIONAL BRUSH HEAD: have it and then match it with your telescopic pole, you can do a lot of work, Suitable for cleaning high windows, cleaning solar panels,cleaning trucks,buses,caravans,greenhouses,boats,decks,etc. This brush head is specially designed for cleaning window/photovoltaic panels with excellent results. It uses high-quality bristle material, which is strong and durable, and can effectively remove dust, dirt and other impurities. The water flow through brush head has dense and soft bristles, which can thoroughly clean without causing any damage to its surface. Our brush head is also equipped with 4 connectors that can spray water. After connecting to the water source, it starts to play a real cleaning role. Then, connecting to the telescopic pole can complete high-altitude cleaning, window cleaning, and cleaning of inaccessible corners. It comes with a standard ACME thread, which can easily be paired with any extension pole with ACME thread.PICKING LIST:brush head*1;10cm water hose*6;hose fitting*3;angle adapter*1.