DIY Assembly Mini L4 Simulation Transparent Engine Model---Runnable

1. Explore the mysteries under the hood of the car! L4 simulation engine, the parts are designed according to the real engine, and the assembly experience is different. The model can be run after assembly, and it has sound waves, the outer shell is transparent, and it can be seen directly inside the engine.2. The product comes with detailed assembly instructions, a total of more than 100 components, including spark plug LED lights and sound base. The components are assembled with screws or bolts to ensure a good assembly experience without glue. Build a fully functional simulation inline four-cylinder engine model in 2.5 hours, and experience the fun of technology with you and your family!3. Working Model: The crankshaft connecting rod and piston are all available, and the engine sound wave module is integrated. In the transparent housing parts, you can see the mechanical structure and inside of the horizontally opposed engine. The crankshaft, pistons and valves operate like the origin