Supercharge your GraviTrax marble runs! This Power Element Electric Cannon expansion adds a whole new level of action. Kids (8+) can use the included action stone to trigger the cannon, which gives the marbles a powerful boost of momentum, sending them flying farther and higher. The set includes 39 pieces, like switches and finish blocks, to get creative with. The electronic elements connect invisibly, letting young builders 'program' their track layouts. It requires 2 AAA batteries (not included) and is compatible with all GraviTrax starter sets. It's an awesome STEM-focused gift that combines physics, engineering, and pure fun.
