1. The novel design creatively combines the Stirling engine model with the toy car. 2. Stirling engine model provides power to drive the toy car and has a variety of ways to play. 3. The product itself has been assembled and can be used directly, which has a high collection value. 4. Exquisite appearance, fine polishing, not easy to rust and discoloration, with high‑end texture. 5. The slot is used to fix ethanol lamp, safe and reliable, and widely used in scientific projects and physics/mechanical learning. 6. By operating engine, intuitively understand working principle of the Stirling engine and deepen your interest in physics. 7. It is also a good class demonstration prop for teacher, suitable for friends, family, children, etc. Specification: Material: Metal