With the Geomag Mechanics Gravity Vertical Motor magnetic construction set, you can build a ball run that uses gravity and magnetism. The set contains 183 pieces, including bright green and orange elements as well as metal elements and spheres. The vertical gravity motor transports the spheres upwards using a mechanical principle so they can roll back down the tracks. Made in Switzerland from 90 percent recycled plastic, this STEM toy combines creative building with the laws of physics. It is suitable for anyone who enjoys technical construction.