• MOC Mechanical Engineering Toys: Functioning models can help players understand the working principles of engines, stimulate interest in machinery, and are suitable as popular science teaching aids.
• Mould King 10088 Engine Building Kit：This 535-piece engine set has rotating blades and gears. The transparent cylinder head allows you to see interesting piston movement and cable interaction.
• 1:1 Restored Working Principle: The set is equipped with an L-shaped engine and a 9V battery box. The electroplating process makes the engine look more realistic.
• Easy-to-assemble STEM toys: The realistic model can help players understand the working principle of the engine and stimulate their interest in mechanics, making it suitable as a popular science teaching aid.
• Quality Service: We are committed to providing the best service to our customers. If your kit is missing any parts or has other problems, please contact us and we will send you a replacement part.