With three cats, you go through a LOT of cat litter. But CatGenie's granules are a lightweight, earth friendly alternative to lugging 20lbs of cat litter into the house every other week! And, the cardboard box it comes in is so much easier to discard then those big plastic boxes! I can't say enough about the CatGenie! It is a great product and the granules are nothing short of a stroke of genius!