Product Description：

100% 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.

Specifications:
Original box: Yes
Colour:Claret-red !#!amp!*! Silver
Size: 90x76x97mm(LxWxH)
Weight: 79g

Package included :
1 x Newton's Cradle Balance Balls Desk Toy