The universal exercise machine not only looks beautiful, but also immerses you in the charming world of permanent movement. Create an uninterrupted rolling ball display to give you more happiness. Suitable for children and adults. Gives you a calming and stress-relieving visual experience when you watch perpetual motion. Great for relieving stress and creating a calm environment. Great for desktop decoration or office. Not only a desktop decoration toy, it is also an amazing educational tool for kids learning physics and balance. Discover for yourself the art of electromagnetism and the wonders of perpetual motion machines. The upgraded perpetual motion device becomes more stable and has lower sound. This toy is easy to play, you can turn on the start button (the touch switch button is on the base), and then the working indicator light will change blue. After placing a metal ball from the top, the ball will continue to the machine. (Note: Do not place multiple metal balls in the machine.) The permanent exercise machine is a for kids, friends and family. Whether it's a birthday, Halloween, Christmas or a special occasion, this tabletop toy gift will give you an unforgettable experience. Colour:A:Black Material:plastic Package Contents: 1 set x kinetic art Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.