Newton Cradle Balance Ball Physics Science Pendulum Educational Toy Square-Large 18cm

A fantastically relaxing object to have ticking and clicking away at your elbow as you work, rest or play.

Sit back and watch the soothing motion of the steel balls swinging back and forth, listen to the gentle clicking as each ball taps each other - no matter how stressed out you are, Newton Balls will have you relaxed in minutes.

A classic fun gadget for everyone!

Newton's cradle, named after Isaac Newton, is a device that demonstrates conservation of momentum and energy via a series of swinging spheres. When one on the end is lifted and released, the resulting force travels through the line and pushes the last one upward. The device is also known as an executive ball clicker, Newton's balls, or Newton's pendulum.