Eachine Physics Classic Newton's Cradle Balance Balls Metal Desk Decoration

Physics Classic Newton's Cradle Balance Balls Metal Desk Decoration Description: An house or office decoration Easy to install and uninstall High class material and very good appearance Let your room have more fun Newton's apple tree Features: 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. Great gift for everyone. Size:18cm x 15cm x 18cm Package Included: 1 x Newton's Balance Ball