External Combustion Model $40.99 View Product Categories: Hobby, Stirlingkit Description Description Stirling Engine Model External Combustion Model Toy With LED Light Related products Hobby, StirlingkitHot Echo Type Engine Model Double Cylinder Quartz Heating Tube Engine Kit $46.99 Hobby, StirlingkitPolished Engine Model Aluminum Single Cylinder Kit $68.99 Hobby, StirlingkitAluminium Alloy Engine Model Quartz Heating Tube Educational Motor Kit $110.89 Hobby, StirlingkitMetal Engine Model Kit Quartz Hot Cylinder Engine Motor $56.99