Alternative as Barbican ..... Yes At first I thought that when I got the delivery. The price 50% from the original part and at first glance looked the brush really perfect 1: 1 as the O-part of. The surprise then after installation. The Vorwerk made loud noises and the brush turned after a few seconds immediately: brushes error! After repeated assembly and disassembly and inspection of correct seat, the error did not go away. We have more than 25 years Vorwerk vacuum cleaner and never had such problems, but also for the first time used an alternative spare parts. Since we are probably fell for directly! After closer examination and comparison with the O-part, we found that the red brush the retrofit part was actually 2mm longer than the O-part! With the naked eye so first not to recognize! Well probably something high manufacturing tolerances in China ... and that's why the plastic of the brush scraped in the brush housing of Staubsaugkopfs .... Therefore, I can so far only positive reviews here only disagree and must warn against buying this spare part.