Toys that use hands and brains to develop brain power are the trend design of the new era. Toys that can learn while playing, and use aerodynamic principles to push the car forward. No batteries, just play.

usage method:
1. Open the top cover of the car and install the balloon.
2. Align the air inlet and install the trolley.
3. Press down the inflation rod to fill the balloon.
4. Press the start button, and the car starts to sprint.