Stirling Engine Kit V Shape Suction Type Double-cylinder Vacuum Model High-end Creative Gifts for Collection Teching teachers Demo props on the

teachers Demo props on the class

composed of 3 mobile impellers and 2 static impellers in the cylinder

The connecting rod is made of high quality 304 stainless steel

engine sounds

The power generation voltage is 4-9v

Stirling Engine Kit V Shape Suction Type Double-cylinder Vacuum Model High-end Creative Gifts for Collection Teching teachers Demo props on theV Shape Suction Type Double cylinder Stirling Vacuum Engine Model High end Creative Gifts for Collection Features: . 100% brand new with high quality . Exquisite appearance, domineering and eye catching, looks very mechanical and technological . A selection of high quality materials, made of pure metal, solid and strong . The engine contains two hot cylinders with high power, and the V shaped shape helps to achieve rapid heat dissipation and increase