Mini V4 Steam Engine Model, Metal 4-Cylinder Miniature Steam Power Engine without Boiler for DIY Model Ship Car Generator, Desktop Collectible Gift for Enthusiast

【Exquisite V4 Miniature Design】：This mini V4 steam engine measures only 90 x 85 x 70mm, small enough to fit in your palm yet engineered with precision. With four cylinders and a realistic Walschaerts valve gear system, it is both a functional model and an elegant collectible for mechanical enthusiasts 【Durable All-Metal Construction】：Crafted from high-quality metal materials with a bright polished surface, this engine model is finely manufactured with advanced techniques. The smooth finish, delicate structure, and robust build ensure durability, making it suitable for long-term display, operation, and collection 【Smooth Performance with Bearings】：The crankshaft is supported by bearings at both ends, reducing friction and allowing smoother, more efficient operation. When connected to a boiler (not included), the model operates reliably, demonstrating real steam power principles in action with impressive stability and detail 【Educational and Practical Value】：This model allows users to observe the principles of steam mechanics firsthand. By lubricating with steam cylinder oil, connecting copper pipes, and controlling pressure, hobbyists can learn about real engine operation, making it an excellent educational tool as well as a collectible piece 【Ideal for Collectors and Hobbyists】：Recommended for ages 16+, this steam engine is perfect for mechanical model collectors, DIY enthusiasts, and students. It can also be applied to steam ship models, car models, or small generators, making it versatile, valuable, and a unique gift for those passionate about engineering