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light-up spark plugs
Warm Tips: Put the motor in a sunny place to rotate
Floating Height: 1
the bracket is made of aluminum alloy
Product Dimensions: 46
γ-shape Hot-air LED External Combustion Stirling Engine Model Price_$30-$50 light-up spark plugsshape Hot air LED External Combustion Stirling Engine Model Features:. Science Education Toy: Novel design, simple structure, easy to operate, ready to run. The Stirling engine is an external gas turbine that runs steadily and quickly with just the heat of a spirit lamp and the whirl of a flywheel. It's a fun and imaginative tabletop technology toy that people will marvel at. . Magical Power generating Toy: You can watch the whole process of the
