Features: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: 9cm x 7.5cm x 9.5cm.
Package Included:1 x Newton's Cradle Balance Balls Desk Toy
NO Retail Box. Packed Safely in Bubble Bag.