Features: 1¡¢High Performance: Scientific overall structural design to ensure the integrity and stability of the system. 2¡¢Multifunctional: Thermal energy is converted into mechanical energy of the engine, hands on, more intuitive to master its low temperature working principle, deepen interest in physics. 3¡¢Easy To Assemble: Stirling engine Collectible value, can be used as an ornament, but also as a school experiment supplies. 4¡¢Material: The base plate is made of brushed stainless steel material, strong and durable, not easy to rust, exquisite and beautiful. 5¡¢Wide Range Of Applications: Children's science projects, physics mechanical learning, teacher demonstration props in the classroom. Item Type: Stirling Engine Material: Zinc Alloy, Stainless Steel, Glass Fuel: 95% Alcohol (This Product Does Not Contain Alcohol) Package Included: 1 x Engine 1 x Alcohol Bottle 1 x Alcohol Wool 1 x Spare Heating Glass Tube 1 x Iron Wire