Feature:1. Exquisite Workmanship: Stirling engine production with premium materials and elegant craftsmanship, using mirror stainless steel base, premium fan blades.2. Non Slip: No screws protrude from the plate to ensure steady operation, giving a flat base and good surface contact with heat sources.3. Easy To Operate: Put the Stirling on a cup of hot water and put small ice cubes on a plate above the Stirling. This way the temperature difference is much larger than normal and runs faster.4. High Performance: Beautiful and elegant appearance, low noise, low pollution and low running cost.5. Multipurpose: With a wide range of applications, such as children's science project gifts, physics machine learning, teacher classroom demonstration props, friends, family, parents, children's birthday gifts, etc.Specification:Item Type: Low Temperature Stirling EngineMaterial: Zinc Alloy, Stainless SteelFuel: 95% Alcohol.Package List:1 x Low Temperature Stirling Engine