First - the box is not bad. She was easy to assemble and the cats they take good care of. Very, very important, however: The box is not suitable for small cats. We have picked up our two new additions from their foster home (in two boxes) and had the middle of the freeway suddenly a freewheeling hangover in the car. What happened? One of the two had climbed through the "Streichelöffnung". The small flap about the escape attempt could not withstand. And although the 'small' with 9 months and 2.5kg was no longer really tiny. So do not touch, when a young / small cat to be transported thereby. For larger cats it is however super. I will solve the problem now so that I zuklebe the door and always keep an eye'll have it for future transports until the cats are large enough to not fit through the opening.