We now have 4 of this variety because we are a multi-cat household. Our cats like to go to this Klos. We use maize litter, which can be given in the Toi after use. The cats scratch and dig in rum, but a floor has not yet been broken and everything else is fine. The first purchase with the toilets is already scratched so that I had to discard soon so I speak from long experience. For us, these litter boxes are perfect. They are easy to clean and keep all the legacies of our sweeten where they remain shall- namely in the toilet and nowhere else. That's why we 5 stars and an unrestricted recommendation to buy, as long as the price is right.