Product Review

Warning: Never burn the boiler without water
This was quite easy to put together, required only scissors and a metric ruler. There was even a magnetic screwdriver included.
Don't be afraid that the instructions are all in Chinese. If you have some experience putting together kits and pay attention to the little details in the pictures you can put this little engine model together even without any knowledge of Chinese. All the pieces fit beautifully together.

Features:
Package Size: 310*240*80 mm / 12.20*9.44*3.14 in
Material: steel and plastic.
Weight: 500 g/ 1.10 lb.

Don't touch the boiler after you fire the alcohol burner.
Due to the hot steam, beware that this needs adult supervision or responsible kids to avoid burned fingers.

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Stirling steam boiler is traditionally classified as an external combustion engine. Please refer to Wikipedia for more information about What is the stirling steam boiler and How it works?