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ENTERTAINING---- The motor rotor can rotate under weak light source
Mini Hot Air Stirling Engine Motor Model Electricity Generator Metal Base Physics Science Educational Toy
Advanced machinery and equipment precise production
Package Dimensions: 17*12*12cm
a relaxing stress relief physics toy for people in the office
1:2 Visible Flat Twin Airhead Engine Model Kit DIY Stem Engine Model Price_《$30 ENTERTAINING---- The motor rotor can1: 2 Visible Flat Twin Airhead Engine Model Kit DIY Stem Engine Model Features: . Beautiful appearance, transparent and visible, the finished product is realistic and full of mechanical sense. . The mechanical structure and internals of the horizontally opposed engine, the crankshaft, the pistons and the valves can be seen in the transparent casing, and the ignition spark is perfectly simulated. . Fun to Play: Contains more than 290 components,
