Kinetic Art Perpetual Motion Machine - Energy Ball Desk Toys for Adults and Kids,Battery Powered Perpetual Motion Simulator Educational Science Kits Office Home Decor( Read Instruction
- 1.You need put battery in the back of the round platform.You need debugged it according to the instructions when you recived it because of the transportation it may shifted.
- 2.Funny and Creative Perpetual Motion Machine: The non-stop ball looks funny,makes everyone want to buy one to play.
- 3.Perpetual Motion Simulator:It will make you think how and what make it works in Physics.
- 4.Perpetual Motion Simulator:It will make you think how and what make it works in Physics.
- 5.Educational Science Kits:Gifts for your own kids to feel The charm of physics and study the work theory..