All the tools they need to succeed: Your child will have a great time constructing this comprehensive model engine toy! Tinker with the cranks, pulleys, belts, and exhaust valves to make this little gadget come to life right in front of their eyes! Rev it up: Deliver the action of a classic car engine thanks to the powerful pistons and interactive cables! Simply plug the cables to the battery pack distributor and watch the engine fans turn around! Develop their critical thinking skills: This set will encourage young boys and girls to expand their creativity, think logically, and even refine their motor skills all at once! Make the world of stem amazing for your children with this intuitive and engaging kit! It makes science, mechanical engineering, and even technology exciting from start to finish!