Metal External Combustion $55.99 View Product Categories: Hobby, Stirlingkit Description Description Stirling Engine Kit Model Metal External Combustion With Light Bulb Developmental Toy Related products Hobby, StirlingkitMetal Engine Model Kit Quartz Hot Cylinder Engine Motor $56.99 Hobby, StirlingkitHot Echo Type Engine Model Double Cylinder Quartz Heating Tube Engine Kit $46.99 Hobby, StirlingkitHot Echo Type Single Cylinder Engine Model Quartz Heating Tube Engine Kit $59.99 Hobby, StirlingkitPolished Engine Model Aluminum Single Cylinder Kit $68.99