Safe and Leak-Proof: It has a durable and re-liable construction, being easy to refill and having no leaks. No dangerous paints or metals you need to worry about. The Contixo R9 Bubble Dinosaur is 100% for your kids and your pets Fun and Flashy Features: It combines fun music; dinosaur sounds and color LED lights. Whether kids play in the day or night will have a flashy experience. Contixo R9 Bubble Dinosaur walks around using a special wheel and your child can run after it which makes for excellent exercise and development of tracking ability and hand-eye coordination. Use 4 x 1.5 V “AA” Batteries: Unit requires 4 x 1.5 “AA” Batteries (NOT Included) Stimulate Development: Introduce your kids to the wonderful world of dinosaurs, stimulate their creativity and imagination, and promote essential cognitive skills development with our Contixo R9 Bubble Dinosaur. A perfect gift for birthdays, holidays, summertime, and other special occasions.