Features 1??Multi Purpose: Stirling engine model kit has a wide range of applications, gifts for children's science projects, physics and mechanical learning, classroom demonstration props and so on. 2??Enhance Learning Interest: By operating the engine, children will observe and understand the operation process, and more intuitively understand the working principle of Stirling engine, thus deepening their interest in physics. 3??Exquisite Appearance: Stirling engine motor model adopts the shape design of a tank car, with vivid details and exquisite appearance. 4??Novel Interesting: The Stirling engine model is creatively combined with the toy car, powered by the Stirling engine model, which has a variety of games and is full of fun. 5??Exquisite Gift: Stirling engine motor model educational toy can be given to children as a holiday gift, and they will love this gift. Specification Item Type: Stirling Engine Model Kit Material: Zinc Alloy Usage: Through Manual Operation, the Whole Operation Process of Stirling Engine Can Be Observed, the Stirling Principle Can Be Understood More Intuitively, and the Interest in Learning Physics Can Be Deepened. Package List 1 x Stirling Engine Model 1 x Alcohol Lamp 1 x Alcohol Rope 1 x Inner Hex Spanner 1 x Tweezers 1 x Elastic Rope 1 x Injector 1 x Gun Barrel 1 x Heating Glass Tube 3 x Rubber Rings