Buyer beware! This is designed for kittens and very small cats. We have 2 normal sized cats (8-10lbs). In researching, many people said the litter box provided was kitten sized, so we purchased the largest one we could find that would fit inside. Despite this, our cats couldn't fit comfortably inside and still hit the box, so within a week of finally putting this together, the bottom was covered in urine. We discovered this just days after our 30 day return window so we're out a lot of money for a poor design. Very disappointed.