This set contains 28 metallic spheres, 28 magnetic bars in light green, dark green, and light blue colors, as well as 2 blue square base panels and 2 light green pentagonal base panels. These elements are designed to be compatible with Geomag's Classic and Panels product lines. Geomag is an educational STEM game that encourages an interdisciplinary learning approach, promoting the development of hand-eye coordination, visual sensitivity, and attention span. It emphasizes limitless creativity, and all Geomag products are made in Switzerland with high-quality materials and adhere to strict European and international safety standards, including ASTM and EN-71 certifications for toy safety.