It will keep you and anybody else who watches it mesmerized for hours.
It is a decorative ornament, and it can also be used as a tool for physics explanation for elementary school students..
Great for home ornament, study or office desk table decor accessories, etc.
Also good for birthday gift and kid toy.The perpetual motion is a piece of revolving art for your desk.

Please allow slight measurement deviations due to manual measurement.

Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed in the pictures.

Perpetual Motion Machine