About this product

1、Friction and damping effects are also observed.

2、Excellent educational science gadget. Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy.

3、Science toy. When feeling tired of studying and working, you can stir balls to hear the clinking sound to ease.

4、Excellent educational science gadget, own your very own piece of scientific

history and explore significant values of physics.

Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gift and kids toy.

Specification:

Condition: 100% brand new