Specification: 
 Material: Metal
 Type: Model
 Size: 54mm bottom diameter, 123mm height 
 Weight: 157g
 Features:
 1.This engine is exquisite in appearance, small and exquisite.
 2.Piston and cold cylinders are all made of metal, durable, the heating
 head is quartz tube, instantaneous high temperature or cooling will not
 be broken.
 3.Just a little alcohol can make it quickly run up, whether as an 
experimental teaching material or give it away is the best choice.
 4.The design structure is exquisite, easy to dismantle, can cultivate children's hands-on ability.
 Package Included: 
 1* stirling engine 
 1* alcohol lamp 

