I did not buy this litter on Amazon because fasting not know you could procure them. But first ... I know the qualities of this litter I buy usually in supermarkets. Then I want to say my amazement at people who complain about this type of litter and especially to the fact that these litters are changed only once a month ...! It is not enough to remove the droppings but for a healthy simply empty the litter once a week. What good is it to cram in as and when? Or to have a nice smelly, damp mound - especially the tank bottom - and the cat that does not seem to have convinced wet and stinking paws in turn? Do you have the habit of taking bath in your tub by keeping the dirty water all month and adding to the fleet each bathing and soap ?? Well you seem - for some of you - being in this strange tribe who is surprised to have litter odors or other abnormality of said litter. And if the package says that you can leave your kitties wading for 8 weeks, it is undoubtedly necessary to show a little more sense. Mens sana in corpore sano. There, I said it all !!