Hot Air Stirling Motor Gold Color Easy Assembly Stainless Steel Stirling Engine Model For Teaching Decoration Feature: 1. Practical exercise: This hot air mixing motor will show you how heat energy is converted into mechanical energy of the motor. 2. Educational toy: This Stirling engine model allows children and students to better understand the principle of operating at low temperature, increasing their interest in physics. 3. Stainless Steel: The bottom plate of this mixing motor toy is made of brushed stainless steel, exquisite and beautiful. 4. Scientific structure: This hot air engine model can be assembled easily. The scientific design of the overall structure ensures the integrity and stability of the system. 5. Wide Application: This engine model is widely used in children's science projects, in physical/mechanical learning, and jako demonstration prop for classroom teachers. Specification: Item Type: Hot Air Stirling Engine Material: stainless steel, zinc alloy, glass Fuel: 95% alcohol (alcohol not included) Package List: 1 x 2 x alcohol swab 1 x Bulb 3 x Eraser 2x magnes 2 x Power Clip 1 x Wire 1 x Voltmeter