The set includes metallic balls, magnetic rods and mechanical elements made from plastic to create a compass Geomag is the famous magnetic construction toy in the world, consisting of magnetised rods and metallic balls Because of the magnets positioned at each end of them, the rods stick to the balls, allowing you to build whatever comes into your mind Geomag products qualify for the STEM (Science, Technology, Engineering and Mathematics) category, which indicates an interdisciplinary approach to learning Swiss Made quality All the products are in line with the strictest European and international safety standards, Manufacturer: Geomag