Compact, modern Stirling engine model that combines clean lines, durable materials, and simple operation to demonstrate thermodynamic principles and serve as a refined desktop display. Key benefits Clear handson demonstration of Stirling engine operation: watch the cycle of hot air expansion and cold compression to visualize a fundamental physics principle. Ready to use and simple to operate: fully assembled model starts quickly with minimal assistance for the flywheel and basic ignition. Durable, quality construction for longterm use and display: aluminum alloy body and hard glass hot cylinder provide strength, smooth touch, and a metallic modern look. Features and specifications Body material: aluminum alloy for rigidity and a metallic finish. Hot cylinder: hardness glass designed for speed operation and long runtime without wear. Operation principle: powered by the expansion of hot air and compression of cold air in the Stirling cycle. Finish: finely ground overall surface for a smooth, modern texture that pairs form and function. Assembly: delivered fully assembled and ready to operate. How to operate Place the engine model on a stable horizontal surface. Add about 2/3 as instructed for the hot cylinder fill level. Ignite under safe conditions. The engine will begin running; gently assist the flywheel to start if needed. Observe the moving parts to gain a direct, intuitive understanding of the Stirling engine cycle. Practical applications Educational demonstration: classroom or home experiments to illustrate thermodynamics and mechanical cycles. Office or home decor: a functional and elegant piece that doubles as a conversation starter on a desk or shelf. Hobbyist collection: a readytouse model for enthusiasts interested in mechanical models and thermal engines. Why choose this model Teaches while it displays: combines a working mechanical demonstration with collectible, grade appearance. Low setup effort: preassembled and straightforward operation lets users focus on learning and observing. Built to last: metal body and hard glass components reduce wear during extended use. Note on safety and use Operate on a stable, horizontal surface and follow safe ignition practices. Start the engine gently by assisting the flywheel if required to observe the full operating cycle.