The Geomag Mechanics Gravity Elevator Circuit marble run offers a fascinating construction experience with 207 pieces. The set combines the invisible forces of magnetism and gravity to move metal balls through the course. A mechanical elevator transports the balls upwards, while the magnetic cannon provides additional propulsion. The components are made from 86 percent recycled plastic and can be assembled modularly. This innovative building system promotes an understanding of physical principles through practical experimentation when constructing varied marble runs.