Low Temperature Stirling Engine Model Mixing Motor Steam Engine Cryogenic Scientific Experiment Toy

Feature: 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 high-quality materials, exquisite and beautiful, the modle is the perfect 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 9.5cm4.3 x 3.7 x 3.7in (manual Measurement, There May Be Slight Errors). Package List: 1 x Low Temperature Stirling Engine Note: Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.