The pendulum balls show the conservation of momentum and energy, creating perpetual motion,these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools.
Suit for both kids and adults, excellent for learning science, killing boring time and releasing stress, which makes it a good present for birthday, holiday.
Place of Origin:China
Use:Office desktop decor, Business gift
Logo:Custom logo
Color:As pictures
Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy
$2.92
The pendulum balls show the conservation of momentum and energy, creating perpetual motion,these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools.
