Joytopiaminds Retrol Steam Engine Model Kit, High-Speed All-Metal Mini Steam Turbine Engine, Physics Experiment Set for Adults

⚡【Ultra-High-Speed Performance】Achieves over 50,000 RPM with a 1.95mm output shaft. Compatible with air compressors (not included) for grinding, polishing, or educational demonstrations 【Premium All-Metal Build】Crafted from brass and stainless steel, including rotor and ball bearings. Polished golden finish ensures durability and a striking desk display (42g weight, 5.5x5.5x4.5cm size) 【Hands-On STEM Learning】Demonstrates steam turbine mechanics and energy conversion. Ideal for classrooms or hobbyists aged 16+ to explore aerodynamics, physics, and industrial applications ️【Compact & Functional Design】Features 4mm air inlet and 6mm outlet ports. Palm-sized for easy operation-perfect as a workshop tool or interactive science exhibit 【Unique Gift for Enthusiasts】Combines artistry and engineering. A captivating gift for engineers, collectors, or educators passionate about kinetic models and mechanical craftsmanship