1.The front swing door can optionally serve only as an entrance, so that the cat must leave the toilet through the opening in the lid. Fallen litter ends up again inside the toilet thanks to the openings.Also easy to clean the hygienic sand of cats; follow the natural jumps of the cat and train it to make it even more fun 2.The spacious interior and the large swing door offer plenty of space - even for the largest cats. The hood, including the swing door, can be opened or removed completely, making it easier to clean the toilet. 3.The included activated carbon filter prevents unpleasant odors from escaping from the litter box (this should be changed at regular intervals). And to make sure there is no mishap, the shell has an extra high edge. 4.Your cat can enter or leave the very bright toilet on playful and with a quick glance you can check the condition of the litter