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STABLE FIXING: This Stirling engine contains 8 hot and 8 cold cylinders for a total of 16 cylinders, which is very stable on the wooden base

EDUCATIONAL SCIENCE TOY: By operating a stirling engine, you can gain a more intuitive understanding and learning of structures and principles. An excellent popular science toy to help develop children's interests

USED AS TEACHING PROPS: Wide range of applications of great gift for kids science projects, physics or mechanical learning, classroom teaching props

BIRTHDAY GIFT OR DECORATION: Stirling engine model can also be a birthday gift for friends, family, parents, children, etc., as well as home decoration

LONG USING TIME: Hot air stirling engine kit is wear resistant, not easy to be damaged, and the use time is long