- Brand new and high quality.
- Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.
- Friction and damping effects are also observed.
- Often used as a toy to amuse people.
- Includes steel balls, plastic frames and base.
- Great gift for everyone.
- Size:18cm x 11cm x 14cm – 7.09inch x 4.33inch x 5.51inch.
- 1 x Balance Balls Desk Toy