1. Moving Mechanism----Under its openable hood, you can see the gear trains moving after a windup. You can also change the direction of the front wheels by turning the steering wheel. Build your roaring tractor and let it take you to the broad farmland far away from chaos and busyness
2. Rewarding Challenge----3~4 hours' highly satisfying building experience, this building kit will put your visual-spatial skill and patience to the test. But you will find yourself absorbed in the construction and get inspired by STEM concepts and imagination.
3. Ideal Gift& Hobby----Gift for all. Whenever it's a birthday, anniversary or holiday, or even a daily quality time, this is a perfect choice to create hours of fun.