Perpetual Motion Newton Pendulum Balls Chaos Swing Ornament Child Education Toys

New and high quality Material: MetalplusPlastic Size: 10.5*18.5cm Reminder: Due To Transportation Reasons, This Product Does Not Contain Batteries. Features: 1/This Is An Interesting Toy And A Good Teaching Prop. 2/It Shows The Rules For Conservation Of Momentum And Energy. 3/It Is Not Only A Newton'S Cradle, But Also A Stress Relief Ornament. 4/This Represents People’S Pursuit Of Perfection. 5/It Is The Best Gift For Relatives, Friends, Teachers, Classmates And Lovers. Package Included:1pc Note: 1. Due to manual measurement, please allow an error of 1-3mm. 2. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image. 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.