Are you looking for a toy that will help develop skills and promote an interest in Science? On the surface, this toy looks simple, but it actually is a very clever design that uses the laws of electromagnetism in its design. Playing with the Skill Flux will develop skills similar to juggling or yo-yo-ing. How Does the Skill Flux Work? Most of us are familiar with the way that ordinary magnets attract and repel each other, but the Skill Flux takes a step further down the rabbit hole of stuff that you probably didn't pay attention to in school! The materials inside the metal tube cause electric "eddy currents" to circulate (demonstrating Faraday's Law of induction), then when the magnetic ball is dropped into the tube, a powerful magnetic field is created inside the tube which slows down and stops the falling ball. This is due to Lenz's Law and for real it feels like magic! OK, the Science part is done! The Skill Flux is made from superior materials incl In the box: 2 aluminium cups, 1 super-strong neodymium ball, 1 labeled linen bag, English user manual.