Lightahead Cosmos - Art In Motion Design is very creative, stylish and innovative Manufactured to the Highest Quality standards A simple spin of the top of the base sets the galaxy in motion. Perfect for your outer space themed office or room dcor Great Gift Idea A dynamic balancing instrument for your office,desk or living room This cool desk toy will be a good icebreaker when you lay it in your office desk or your home desk. An intriguing device that not only demonstrates pendulum motion, but also helps to show the laws of Conservation of Momentum and Energy. It is an amazing product and can make a great gift to your families or friends The Revolving Cosmos Perpetual Motion Desktop Toy is great for your outer space themed office or room decor. A simple spin of the top of the base sets the galaxy in motion. The multicolored rings start spinning in different orbits around the planet in the center. This incredible piecewill keep you and anybody else who watches it mesmerized for hours. A cool gift for the science physics enthusiast. Measures 11.5 inches tall.