Yechiry Low Temperature Stirling Engine, Steam Heat Educational Model Toy with Brass & Aluminum Parts, for Physics Science Enthusiasts, Mechanical Learning

• The operation is simple, the hot water is preheated for 1 minute, and it can be started by turning the flywheel clockwise.
• The model kit has a wide range of applications, gifts for children's science projects, physics，mechanical learning, ect.
• Made of materials, exquisite and beautiful, the modle is the greatest combination of texture and beauty
• Convenient for hands‑on operation, more intuitively grasp its working principle, and deepen your interest in physics.
• The product itself has been assembled, has collection value, can be used as decoration, can be directly used in experiments, simple and convenient.

Product description 1. The operation is simple, the hot water is preheated for 1 minute, and it can be started by turning the flywheel clockwise. 2. Made of materials, exquisite and beautiful, the modle is the combination of texture and beauty 3. The model kit has a wide range of applications, gifts for children's science projects, physics，mechanical learning, ect. 4. Convenient for hands‑on operation, more intuitively grasp its working principle, and deepen your interest in physics. 5. The product itself has been assembled, has collection value, can be used as decoration, can be directly used in experiments, simple and convenient. Specification: Item Type: Stirling Engine Model Material: Zinc Alloy Function: Can Reduce the Temperature of the Cup Water Size: 11 x 9.5 x 9.5cm/4.3 x 3.7 x 3.7in (manual Measurement, There May Be Slight Errors) How to Use: Pour boiling water into the cup, put the Stirling engine model on top of the cup, preheat it for one minute, and roll the axle to lower the temperature of the water in the cup. Package List: 1 x Low Temperature Stirling Engine Note: Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding. Safety Warning this product has no safety hazard to users