Made with recycled plastic, Geomag Mechanics Gravity Loops & Turns Recycled 130 piece construction platform combines the force of magnetism with mechanical construction. Geomag Mechanics Gravity Loops & Turns Recycled 130 pieces stimulate 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.