• Kickstart your learning with these STEM machines that have movement. • Building the spinning and turning machines from the STEM Explorers Machine Constructors set by Learning Resources. • Children learn the scientific principles of how real machines work. • Inspired by the real principles of physics and engineering. • 9 challenges designed for children to learn the principles of mechanical operation of all kinds of specialized machinery. • Use real techniques to build your own miniature of a satellite dish, a space exploration vehicle, a crane, and much more. • By testing and adjusting the creations they build with this STEM kit, children develop critical thinking and problem-solving skills. • This 60-piece STEM building toy includes all the gears, pulleys, belts, and connectors needed to build simple machines. • 10 activity cards filled with challenges. • Compatible with other Gears Gears Gears sets (sold separately). • Warning: small parts, not suitable for children under 36 months.