Description
1. Made of high quality material, durable to use.2. Not only demonstrates a pendulum but also shows the Laws of Conservation of Momentum and Energy.
3. Friction and damping effects are also observed.
4. Often used as a toy to amuse people.
5. Includes steel balls plastic frames and base.
6. Great gift for everyone.
7. Unfold size:18cm x 11cm x 14cm
