DjuiinoStar Low Temperature Stirling Engine

WIDE APPLICATIONS: people bought it for kids' science project physics/mechanics learning demonstration on class etc. It's a well-designed and crafted mechanical toy; great to display basic principle of external combustion engines; fantastic gift for people you love. Many people bought our machines as gift to families teachers friends boyfriends and seldom will our machines failed to cheer them up! MOST CLASSICAL STIRLING ENGINE: with elegant design and fine workmanship this is a beautiful piece of art. Many people are satisfied with the fit and finish of our engine. Manufactured by DjuiinoStar. SAFE FOR KIDS: Complies with the applicable regulations and standards under CPSIA and any other acts enforced by CPSC; passed Toxic Elements Test/Flammability Test/Physical and Mechanical Test of ASTM-963 Standard Customer Safety Specification For Toy Safety. RISK-FREE SERVICE: if the one you receive does not work which rarely happens simply send us a message and we will mail you another FREE WITH NO HESITATION. EASY START: just place on a mug of hot water and give it a spin and you're up and running; as long as enough temperature difference maintains it will keep running like Forrest Gump. People will be shocked and surprised once this little engine start to work. It will definitely be a GREAT CONVERSATION PIECE on your desk.