Newton's Cradle Educational Pendulum Desk
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.
Color: Brown & Silver（the ball is send random color）
Item size: 90*76*92mm
Net weight: 100g
1 x Newton's Cradle Balance Balls Desk Toy
The actual color with a little difference, please forgive me