Made with recycled plastic, Mechanics Gravity Elevator Circuit 207 pcs Exploring harnesses the invisible forces of magnetism and gravity, the Mechanics Gravity line from Geomag is an innovative evolution to the magnetic building set. The 'gravity engine' is able to exploit the weight of the Geomag spheres to trigger the mechanism of Mechanics constructions, without resorting to electric or battery motors. The action, based on the principles of magnetism and gravity, makes Mechanics Gravity a STEM product able to stimulate all levels of scientific insights! Developed with expert players in mind, the new construction system is based on an innovative gravity motor: this uses the weight of the Geomag spheres to kickstart the mechanisms and movements of the Geomag Mechanics structures. The motion is provided by the invisible forces of Gravity and Magnetism, without using electricity or batteries. The play experience is based on these fundamental principles of physics. Mechanics Gravity is a STEM product that can truly stimulate curiosity and inspire to learn more about science. Magnetic construction platform that combines magnetism with mechanical construction Build a gravity engine by using force of gravity 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 Includes instruction booklet Made with 86% recycled plastic WARNING: Choking Hazard; Small Parts. Not for children under 3 years old.