Countdown Begins Bring your child's dream of becoming an astronaut to life with Smartivity's Blast Off Space Rocket. This construction toy is based on the principles of Elasticity, Gravity, Thrust and Propulsion. Once assembled, children can experiment with their rockets by varying the weight of the rocket and elasticity of the launch plate to understand the fundamentals scientific concepts. Let the countdown begin! Age: 6+ Inside the box wooden parts elastic bands components step-by-step illustrated construction manual learning activities