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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.
Base size:85*70*90mm

color : we send black color
Included:
1 x Newton\'s Cradle Balance Balls Desk Toy

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