What is a Zhu Zhu pet without a little zoom? Give your Zhus the time of their life with the Zhu Zhu Pets Adventure Ball Blue. Open the door, clip your favourite Zhu onto the small plastic base piece (Zhu sold separately), close the door and clear the way! These hamsters are in a hurry. Keep up as your furry friend scurries around their Adventure Ball and rolls into excitement! Let’s Zhu this! The Adventure Ball is made for kids aged 4+. No batteries required.