Description: The novel design creatively combines the Stirling engine model with the toy car. Stirling engine model provides power to drive the toy car and has a variety of ways to play. The product itself has been assembled and can be used directly, which has a high collection value. Exquisite appearance, fine polishing, not easy to rust and discoloration, with highend texture. The slot is used to fix ethanol lamp, safe and reliable, and widely used in scientific projects and physics/mechanical learning. By operating engine, intuitively understand working principle of the Stirling engine and deepen your interest in physics. It is also a good class demonstration prop for teacher, suitable for friends, family, children, etc. Color: As Shown Material: plastic+metal Package Contents: 1 x Stirling Engine Model(Due to different product batches, some components ) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.