Newton'S Cradle Steel Balance Ball Physics Science Pendulum Desk Fun Toy Gift J,

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. Base size:85*70*90mm Included: 1 x Newton's Cradle Balance Balls Desk Toy The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.