The POWER Element Electric Cannon adds dynamic movement to GraviTrax marble runs. When activated by the action stone, it propels balls forward, extending their travel distance. This component requires a GraviTrax Starter-Set for operation and is designed for children ages 8 and up. The electronic POWER elements connect seamlessly with each other, enabling customizable track configurations. The unit operates on 2 AAA batteries (not included). Suitable as an educational gift for various occasions.