Description: 【Design】: This DIY science and physics experiment kit features a dynamic simulation of a hand cranked wild goose, offering an engaging way to explore biomimicry 【Materials】: Crafted from wooden materials, this DIY Science Toy is lightweight and easy to carry, making it suitable for classroom or home use 【Educational and Entertaining】: Designed to educate while entertaining, this Children Educational Projects Kit provides strong interactivity that encourages hands on learning for students 【Compact Size】: With dimensions of 5.51inchx5.35inchx5.71inch, the assembled 3D Assemble Wild Goose Model is compact enough to fit comfortably on a desk or shelf without taking up too much space 【Complete Assembly Kit】: The package includes all necessary components for assembling the hand cranked wild goose model, ensuring a comprehensive DIY experience right out of the box Specification: 14cmx13.6cmx14.5cm/5.51inchx5.35inchx5.71inch Package Includes: 1 Set 3D Assemble Wild Goose Model Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.