Geomag - Mechanics Gravity Elevator Circuit - Educational and Creative Game for Children - Magnetic Building Blocks, Circuit with Magnetic Blocks, Recycled Plastic - Set of 207 PiecesBuild a circuit driven by the invisible forces of magnetism and gravity The magnetic cannon uses the force of attraction to accelerate and push the spheres. The movement is generated without the use of electric motors or batteries Learn the basics of magnetism and use them to create controlled magnetic reactions. Stimulates creativity, imagination and intellect The Geomag series, winner of numerous awards, helpd children of all ages to develop