No, it's not a zhu zhu; it is called Hamusuta & Cracker barrell sells it as do several online sites. I like it because the hamster stays inside the ball ( unless like Tuffy your pup occassionally gets real agressive

). I've seen posts somewhere about how someones furkid got it's hair caught in a zhu zhu so I'm a bit leary of letting him have the hamster outside the ball to play with. What I'd really like to get him is a Gupi but they don't sell them here in the states because of power conversion. The Gupi is a guinea pig & he's seen live ones & gone just balistic