Feature: 1. Educational Toy: It is a great educational toy, classroom or laboratory experiment teaching aid to cultivate children's interest in physics. 2. Exquisite Beautiful: With fine workmanship, the appearance of the stirling car engine model is exquisite, beautiful and generous, 3. Scope of Application: Can be used for children's science projects, physical machinery learning, classroom demonstrations, etc. 4. Perfect Gift: It is a perfect gift for friends, family, lovers, and colleagues, and it can also be used as an excellent decoration. 5. High Quality Materials: Made of high quality aluminum alloy, the stirling car engine model is sturdy, durable and has a long service life. Specification: Item Type: Stirling Car Engine Model Material: Aluminum Alloy Remarks: Accessory Alcohol Bottle (Without Liquid) Scope of Application: for Children's Science Projects, Physics Mechanical Learning, Classroom Presentations, Etc. Weight: Approx. 644g / 22.7oz. Package List: 1 x Base6 x Wheels3 x Hex Wrenches1 x Wick1 x Alcohol Bottle (Without Liquid)53 x Other Accessories1 x Magnet1 x Chinese and English User Manual