Mini Brass Flyball Governor for Steam Engines, Precision Steam Engine with Speed Regulator & 3mm Steam Port, Educational Physics Model for Adults

【Premium Brass & Stainless Steel Build】：Constructed with durable brass and stainless steel, featuring a finely machined bracket and two precision brass bevel gears, ensuring reliable and long-lasting operation 【Automatic Speed Regulation】：Designed as a flyball governor for steam engines, it automatically adjusts engine speed to maintain stability, demonstrating the principles of centrifugal force 【Compact and Detailed Design】：Measures 9.4 x 4.7 x 2.5cm and weighs 70g, making it small yet highly functional, ideal for hobbyists and educational model steam engine setups 【Educational STEM Tool】：Operating this governor allows learners to intuitively explore mechanical regulation and centrifugal force, making it a perfect hands-on physics teaching aid for ages 14+ 【Collectible and Hobbyist Gift】：Suitable for model engineers, hobbyists, educators, and collectors, this mini flyball governor serves as both a functional engine component and an exquisite collectible