Newton's Cradle Inertia Ball Pendulum Crafts Per

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:17.5*14.5*18cm
Package Included:
1 x Newton's Cradle per Ball
Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.
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