ENJOMOR DIY Hot Air Stirling Engine Model Building Kits Golden Instruction Manual：click the Link Features:.Creative Design: Different from the normal Stirling engine, the Stirling engine with a balance structure is equipped with a mini generator. Heated by the alcohol lamp, the engine runs fast&steadily and generates electricity to light LED or bulbs, allowing you to feel the charm of mechanical operation..Assembly Kit: Comes with an assembly instruction manual. The engine in kit form, a grand project, makes you experience the overall process from dozens of tiny parts to a complete engine, which contributes to promoting your hands-on ability, science knowledge and creativity..Sophisticated Manufacture: Made of zinc alloy and stainless steel, the surface of the engine will not rust due to the electroplating treatment. Combining texture with aesthetics, the overall exquisite model will satisfy you in appearance and quality..Wide Applications: The Stirling engine is available as a physics/mechanical teaching demonstration, an ideal science project for teachers, students, friends and families as well as an impressive gift&display on the office desktop. Many of our customers are from schools and engine model enthusiasts..A Perfect Gift for Machine Lovers: The stunning and affordable artware in gift packaging looks elegant and artistic and gives your visitors a deep impression, making a cool artwork even on your desk.Specifications:.Material: Metal.Product Dimensions: 16.5 x 9.5 x 12.5cm.Product Weight: 830g.Package Dimensions: 20.5 x 11.5 x 18.5cm.Package Weight: 980g.Packing: Graphic Carton.Ages: 8+