4X (íves típusú Newton bölcső kiegyensúlyozó gömbfizika tudományos inga kézműves EG7I4

4X(Arched Type Newtons Cradle Balance Ball Physics Science Pendulum Craft EG7I4

4X(Style: Modern
Theme: Sports
100% Brand New and High Quality
Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.
Shape: Sailing
Friction and damping effects are also observed.
Often used as a toy to amuse people.
Great gift for everyone.
colour:Wine red silver
material:Steel plastic fishing line
size:M,23*18cm
Package Contents:
1*Oval Newton billiards)

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