12mm Magnetic Balance Ball Toy

12mm Magnetic Balance Ball Toy

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

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