XuanKe Power Stirling Engine Model Physics Science Toy Metal DIY Kit

This is a metal Stirling engine model kit for educational and hobby purposes. It is designed for youth aged 15-35 and focuses on interest cultivation. The model is DIY-assemblable and multifunctional. It is not electric and is suitable for users aged 14 and above. The product comes with a guide video. Model number: SH-006. It is not for foreign trade exclusively, not for cross-border export, and not an export-only item.