My hedgie is on the larger side (its not his fault... pervious owners fed him junk food!). I bought him a flying saucer, and he seems to love it. I love the ease of cleaning it as well. The only issue i have found, is that he moves it throughout the night. it will start out in the middle of the cage in the evening, and by morning it has migrated to the back of the cage. We are going to be geting him a new cage, and I am trying to think of ways to attach the wheel to it. Any ideas?