Feature:1. Stainless Steel: Made of premium stainless steel and beech base, the stirling engine model is , has comfortable hand feeling and a long service life.2. Practical: The DIY stirling engine model can work continuously for more than 8 hours with continuous power supply, very and practical.3. Easy to Operate: Just Fill the alcohol combustor with 95 percent alcohol and turn it on. Let the light burn the round end cylinder for about 20 seconds, then push the wheel, it will work.4. Wide Application: The stirling engine model set is suitable for science programs for children, physics and machine learning, classroom teaching props and home decoration.5. Multipurpose: The educational stirling engine model can be used as a your family or friends and can also be used for teaching props.Specification:Model: SH-18Product Name: Stirling Engine ModelMaterial: Beech Base, Stainless SteelWeight: 320gSize: Approx. 10x10x10cm/3.94x3.94x3.94inApplicable: For Children"s Science Programs, Physics or Mechanical Learning, Classroom Teaching Props Accessories, Birthday Gifts for Friends, Family, Parents, Children, Etc.How to Use:Place the alcohol combustor at the end of the round end cylinder, pour in 95 percent alcohol, ignited and let the combustor burn the round end cylinder for about 20 seconds, then gently push the wheel.Note:1.No lubricating oil is allowed to be added to the cylinder piston;2.Product data are all manually measured, there may be slight errors;3. The color of the base may vary slightly, please refer to the actual product.Package included:1x Stirling Engine Model