High Temperature Stirling Engine Kit: Made of Metal + Refractory Glass, fine polished model feels smooth and comfortable, highlighting the exquisite workmanship. High-quality: Selected high-quality metal materials, silver appearance, exquisite workmanship, high-precision coordination of various parts, stable and firm base. Usage: Take out the alcohol lamp, add about 2/3 alcohol into the alcohol lamp, under the premise of ensuring safety, ignite the alcohol lamp, you can gently power the flywheel rotation, the engine would work. Significance and Value: You can exercise your hands-on ability, increase your knowledge of physics, and increase your interest in learning.