I used this for about three months to raise a hamster. There are bite marks on the entrance/exit area because the hamster often chewed on it. I've included photos of the noticeable damage, so please take a look. I attached a black cushion to the exercise wheel to reduce noise, but you can remove it if you don't need it. I rarely used the included wheel, so the one I used is in good condition. *Water bottle is not included.*