To use this Zhu Zhu Bubble Ball and Surf Board Set, just place the items in your Zhu Zhu Aquarium. Let the fun begin as your Zhu Zhu friends interact with the bubble ball and surf board. For safety, always keep small parts away from younger kids. When it's time for maintenance, gently clean the items with a soft cloth. This will help keep them in great shape for many play sessions to come.