I have the litter box for my that something big cat become appointed as the old but already had on his back for several years. This litter is very spacious, just for big cats, used to clean just great, because the lid does not need to be removed completely, and what I still find great, is that the frame is very high, so that the cat does not have the frame addition pees and therefore not the housing is dirty. I can only highly recommend - price - performance - just great! Packaging TOP! it receives a full star score ;-)