• Metal
• ⚙️【Premium All-Metal & Quartz Construction】Crafted from CNC-machined alloy steel, 6601 aluminum, and quartz glass cylinders, this model boasts a 20 year lifespan. Precision-coated parts resist wear, while the polished 21x13.2x10cm frame doubles as industrial decor
• 🔋【4–9V Power Generation & LED Compatibility】Drive colorful LEDs with the engine’s 54mm flywheel and 24mm pulley system. Includes extra wiring for motor integration—perfect for demonstrating energy conversion in classrooms or DIY projects
• 🔥【Alcohol-Powered & Eco-Friendly】Runs on safe, clean alcohol (burners included). Features a 19mm power cylinder, 16mm piston stroke, and pre-installed critical components. Simply assemble quartz parts (guided by diagrams) for instant operation
• 🎓【STEM Learning Made Engaging】Ideal for labs, hobbyists, or teens 15 . Explains thermodynamics through hands-on play. Use as a teaching aid, puzzle toy, or gift for engineers—combining education with sleek design
• 📦【Complete Kit with Easy Assembly】Includes 2 alcohol burners, wiring, and a partially pre-assembled model (1650g). Quartz parts ship safely uninstalled; follow illustrated guides for quick setup. Ships in a reinforced carton (1942g total)