I have tried some cheap dog blankets. By the missing edge of the rear seat was always sandy and hair were everywhere. With the trough shape I have such problems no longer. Also can anyone sit back without the dog to come into contact. We have a Dewoo Matiz and the tray fits perfectly. That was in the other ceiling whatsoever a total hassle. When not in use, the tray can be easily rolled up. A nice detail is that a suitable protective cover is included if you want to transport the tub, for example in the trunk.