The Kärcher Telescopic lance is a practical aid when you want to clean large, hard to reach areas. You have to deal with this device but with a little patience and develop the best 'technology' for practical use. The helpful 4m are somewhat bulky despite light construction, but that may otherwise also not be. The strap is a nice idea, but in practical work is not particularly helpful, ergonomically sensible. His attachment to the device is not really stable. But it also works without. There is only one fixed beam - a variable solution would be a suggestion to the manufacturer. All in all, it must be said, however: If you want to clean larger Abdächer, glass facades, conservatories etc. just need this device proves to be handy addition in the Kärcher program.