Made with recycled plastic, Geomag Mechanics Gravity Race Track Recycled 67 pcs construction platform combines the force of magnetism with mechanical construction. Geomag Mechanics Gravity Race Track Recycled 67 pieces stimulates children's creativity, inventiveness and a hands-on approach to problem-solving and will introduce the concepts of an interactive magnetic marble run and a cannon mechanism. In addition to magnetic rods and steel spheres, Geomag Mechanics Gravity adds mechanical elements within the construction platform that allows for expanded play possibilities. STEM.org authenticated toy that helps in the development of creativity, fine motor skills in addition to stimulating imaginative play and curiosity through the science of magnetic construction. Magnetic construction platform that combines magnetism and gravity with mechanical construction Build an interactive marble run and magnetic cannon Designed to help stimulate children's creativity by allowing for expanded play possibilities Promotes hands-on learning and offers a creative approach to problem-solving STEM.org authenticated