We have searched and chose this due to ne of cats increase new box. We are fully satisfied. Absolutely spacious ... currently even fit both cats together purely (a male cat and a kitten)! The initial construction was not quite as easy for a woman, because the opposing metal bars must be inserted into each other to create stability. Here Caution: Do not pinch your fingers. It takes a lot of strength or a man on the side. But then everything is fixed and stable. We leave the box up, then takes this place away though, but is also suitable as a cat hiding.