If you know a young rocket scientist, introducing the Blast Off Rocket Racer is a no-brainer! Kids will squeal with anticipation as the "fuel" is mixed with vinegar and baking soda! The way cool rocket racer has big wheels for maneuverability and a sleek, see-through design for a closer look at the chemical reaction in action. There's even a stomp-pad launcher for the ultimate in countdown drama! Ages 7+