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Geomag - MECHANICS GRAVITY UP & DOWN CIRCUIT - Building Set with Magnetic Motion, Certified STEM Marble Run Construction Toy for Ages 7 and Up
Calling all future engineers. The up & down circuit set is the most complete one in the gravity range and is based on the movement of the spheres. Their weight moves a never-ending spiral and starts a real gravity motor. In this system of magnetic gears a second spiral is activated, allowing the spheres to ascend as if they were in an elevator. Once they reach the top of structure, the spheres enter a circuit full of amazing magnetic tricks and then descend once again to keep the gravity motor active. At the heart of this circuit are the 330 pieces contained in this set 21 magnetic rods, 39 steel spheres and

Price is $97.00
Price: $96.99