Parachute Sector Perpetual Motion Desk Decor Newton Pendulum Balls Scientific Education Toy

This Is An Interesting Toy And A Good Teaching Prop.

It Shows The Rules For Conservation Of Momentum And Energy.

It Is Not Only A Newton’S Cradle, But Also A Stress Relief Ornament.

This Represents People’S Pursuit Of Perfection.

It Is The Best Gift For Relatives, Friends, Teachers, Classmates And Lovers.