Mould King Racing Car Engine Building Kit, Build Your Own Engine Model Kit That Run, STEM Engineering & Physical Science Experiment Set with Battery & Motor, Engine for Adults/14+(980 Pcs)

【Build Your Own Formula Engine Model】This Formula engine model replicates the classic racing car engine. A favorite among racing car enthusiasts and technic fans, with robust power output—plus high-flow cylinder heads, ensuring exceptional performance even at high RPMs.

【Electrical Dynamic Version】Includes 1 M motor and 1 battery box (requires 6 AAA batteries, not included). This V8 engine kit features electric drive—assemble it, add batteries, and watch it run! Its compact design delivers impressive power output, even in limited engine compartments.

【Gear Speed Shift & Cooling Fan Spins System】The Mould King engine comes with a gear shift system: adjust between 3 speeds easily by moving the gear lever! And the cooling fan spins system,1:1 Reproducing car engine—they deliver a captivating, lifelike mechanical experience.

【STEM Model Kit】Perfect for family or friend activities! This model kit enhances your hand-eye coordination, divergent thinking, and problem-solving skills—while sparking creativity and brain development. It also teaches collaboration and teamwork, turning science and mechanical principles into an engaging hands-on adventure from start to finish.

【Ideal Gift】This building toy comes in sturdy cardboard packaging—perfect for gifting on Birthdays,Christmas, or New Years. All products of my company have been strictly tested before shipping. If you encounter any issues such as missing pieces or non-functional motor, please feel free to contact us!

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