because I have to carry two dogs had this box for me just the right (2 boxes) .The only Nachteit is the fulcrum of the door when the door is opened more than 90 °, the opening becomes smaller again. The door is then into the box and because my dogs wear a harness they are there already stuck when I let them out of the box wollte.Gut that's something you can add the door on the right as on the left, which is good for transportation in a car is because people then the side choose the one best suit you. Furthermore, I find it not so lucky solved the soil rounded is what to wiggle the Box brings when the dog wants pure, and that has made it one of my dogs to start a little scared. This has, however, now given. A straight underground Währe but nice. Installation is easy, even if you do not need times they can be thanks to the quick release again well and quickly dismantled and space-saving verstauen.Bis on the mentioned things I am very pleased with this box and would re kaufen.Die roles I do not miss because I believe that the dog would not like if man behind drags (wiggle, noise) the box. Then I prefer paying a few euros less as if I have something that I do not need.