Glovion Creative Magnetic Rotation Battery Powered Desktop Spinning Top Automatic Rotating Peg-top Toy Rotating Perpetual Motion Educational Toys Magic Magnetic Revolving Gravitational Spinning Top Fantastic product to illustrate many magical aspects of our world Open the bottom cover, Power-on to produce the magnetic field power Then Turn the gyro exert your strength,Spin this unique top on its base and watch it continue for hours, even sometimes for days without stopping,first play may encounter the edge,please try few more time Powered by 1 X 9V batteryNot include),can last for over a week of continual use.NOTE: Do not put it in any place with magnetic field reference (TV/Computer etc.) The spinning top has a radically oriented magnetic field and an associated base that houses a conductive coil,Its changing magnetic field induces a current in the coil which momentarily opens the switch to the battery resulting in powering up the electromagnet It's not just a mystery,it is a game of wisdom and knowledge,the gyro will not stop, which can last for several hours Even a few days