Metal Hot Air Stirling Engine Motor Model Six Cylinders Educational Toy

Features:
Made of high quality metal, stable and sturdy. Alcohol lamp is fixed with screws, more reliable and safe.
Gatling shape, the engine has a total of six cylinders that rotate when it is started.
Fill the alcohol burner with 95% alcohol, and light the wick. The alcohol burner heats the hot cylinder, then you turn the power cylinder, the machine will start to work.(Note: Alcohol is not included.)
By operating the engine, help children to better understand operating principle of stirling engine, cultivate children's interest in physics.
It is mainly used in classroom teaching and laboratory experiment. A best choice gift to students, teachers, children, friends and colleagues.