Together with the 757 footpacks these square tubes come on a Passat Variant 2012 is used. Here they come only occasionally and mostly used for short distances (for example, a ladder to transporieren) I opted for this square tubes. They make significant wind noise, which I removed the animals carrier when not in use right again - the attachment to the vehicle is the associated Fußsatzes without tools quickly done. In the square tubes (Jan 14) no caps were there, they were delivered on footpacks. That was just as well: Delivery in the original box was not ideal, the box was open and the pipes slipped out of the pack. Because any additional accessories would have been lost. To Length: The roof of the Passat and thus the rail-distance is considerably shorter than the back forward. The attachment can not be too far behind, since the carrier with footpacks 757 and this rectangular tube can not be arbitrarily closely slide.