• Learning through Playing is Fun: Theoretically, the cars should go further and faster as you can blow up the balloons, but the air resistance will also become greater. Don’t worry, the kids will figure out the best size of the balloon and make the car run further after continuous trials, and learn more about Aerodynamics at the same time.
• Safety material: The toy is made of high-quality ABS environmentally friendly plastic, durable and practical, non-toxic, safe, with a smooth surface, without any sharp corners, and will not harm the child's delicate skin.
• Parent-child moment: Applicable to 3 years old and above. This is a set of aerodynamic vehicles, suitable for children to carry out aerodynamic science enlightenment experiments. This will increase the child's interest in physics and knowledge. A good toy can promote the relationship between children and adults, and spend quality time with children.
• Easy To Play: Without the need of batteries, kids can easily make the toy works. Just attach the car or launch tower to the pump, and press the rod to get the balloons inflated, then toy works and happy is gained.

‎18.01 x 16.79 x 15.01 cm; 500 Grams