The Newton's Cradle Light changes colour as it swings.
There are three colors of the balls when it is working. You can press the button on the left to change the colors.
You can put it on your office desk or your home desk or on your shelf. It will be cool desk toy
Adult gadget toy , not fit for child toy, Performing based on Newton's Laws
Power: 6 x AA Batteries (Not included)
Newton's Cradle is a classic desk toy. Also known as "Balance Balls", "Newton's Pendulum", "Kinetic Balls" and "Newton's Balls", this executive office toy demonstrates the law of conservation of momentum.
The motion of this 5-ball cradle is the most addicting way to demonstrate Newton's law of conservation of momentum and energy.
As it works its physics magic, the lights change between blue and red and there are 3 different light modes. You can choose whether you want the lights to flash, fade or begin a cycle. Light Source: LED Size: 20cm*15cm*18cm Material: Plastic+ Frosted Glass Batteries: 6 X 1.5V AA alkaline batteries (not included) Package Included: 1 x Kinetic Light Newton's Cradle Balance Ball (Battery is not included)