Miniature all-metal strong magnetic piston four-cylinder engine model, DC motor

  
Miniature all-metal four-cylinder engine model Powerful engine Strong magnetic piston DC motor All-metal CNC crankshaft. Develop their critical thinking skills: The V4 Engine Model Kit will encourage young boys and girls to expand their creativity, logical thinking, and even improve their motor skills at the same time! An inspiring gift: Create a wonderful STEM world for your child with this intuitive and engaging kit! Whether it's a birthday, holiday, or any special occasion, this mini engine building kit will leave a lasting impression, captivating them with the excitement of creating and operating their own engine. It makes science, mechanical engineering, and even technology exciting from start to finish!