Bought to clean a 5/6 meter high facade with a small scaffold on non-smooth plaster. The result is perfect with a high pressure cleaner base (~ 100 bar) and a jet 30/40 cm walls (javais summarily taken the precaution of spraying an anti-foaming product, very diluted, 2 weeks ago to facilitate work). Javais purchased at the same time, the articulated connector insofar as the head of the telescopic lance is fixed and directed upwards. In my humble opinion, this coupling is essential to maintain a jet perpendicular to the walls (especially if not smooth plaster). Cleaning is a little sport as there is a sharp decline from the lance with the articulated joint, but it is doable by everyone. Installation is very simple and hassle-free connection to a Karcher cleaning. In conclusion: a great buy (94 Euros) with the lowest market price at the time. The articulated connection costs 29.99 Euros. A total actually quite low considering the service provided and the prices charged by facade cleaning professionals. Free shipping and delivery in two days !!!