Perpetual Motion Simulator

The famous Perpetual Marble Machine which went viral since March. Important notice: this is a Perpetual Motion Simulator, it runs on battery power. The battery is 18650 flat-top rechargeable Li-ion type. the Machine, the Charging cable and 5 steel balls are included in the package. This machine uses an electromagnet to drive the ball.   - Dimension: 22x20x12 cm (LxHxW) - Runtime: 5-6 hours (continuous - when the Battery is fully charged). - Made of Premium Exotic called Paurosa, very dense and heavy, with world-class woodcraft and finish. - Quiet, relaxing, very relaxing just by looking at the rolling ball - Charging port: In new updated version, the port is located under the bottom of the Unit, and is totally invisible from above & side look around. Before purchasing, you need to know that the charging port and indicator light are located under the base in order to let the bystander feel that the gravity acceleration is enough to push the ball back to the tray. There is an invisib