Introduce the wonders of mechanical engineering with DjuiinoStar's Low Temperature Stirling Engine. This intriguing device runs simply by placing it on a mug of hot water, making it perfect for science projects, physics demonstrations, or as a unique desktop display. Safe for kids and complying with all toy safety standards, this Stirling engine offers hours of educational fun. It’s a fantastic gift for students, hobbyists, and anyone with a passion for science, providing a hands-on learning experience about external combustion engines.