Xuan Ke Free Piston Stirling Engine Model Physics Teaching Craft Kit

This is a free piston Stirling engine model designed for physics education and as a craft project. It is suitable for young adults aged 15-35. The model is made of metal and is not electric. It can be assembled by the user (DIY). It is intended for export and is not specifically for cross-border e-commerce supply. A shopping guide video is available. The product number is SH-010. It is classified as a physics educational toy for ages 14 and up. The main skill developed is interest cultivation.