The world’s most fascinating way to learn the secrets of space flight, seafaring and robotics!  Set the inner wheel spinning, and these twin gyroscopes balance on a fingertip, dance on a tightrope and more. And they're built to last – made with the same metal construction as the ones you played with as a kid. Comes in a 1940s-style package with pedestal and starter string, ready to enthrall kids from 8 to 108.