Item Description Item Name: 16 Cylinders Swash Plate Single-Cylinder Butane Gas Engine Model Package Includes: 1 x Stirling Engine Model Kits 1 x User Manual Material: Aluminum Alloy + Stainless Steel + Wood Base Material: Wood Propeller Material: Stainless Steel. Color: Silver Product Weight: 700g Product Dimensions: 230 x 150 x160mm Fuel: Butane gas (not include, prepare by yourself) Ages: 16+ Function: This engine is a type of heat engine in the Stirling engine, it contains 8 hot and 8 cold cylinders for a total of 16 cylinders, which operates by cycling compressed and expanded air or other gases, the working fluid, at different temperature levels, resulting in a net conversion of heat energy into mechanical work. The engine is like a steam engine all engine heat flows in and out through the engine walls. Solid wood base, stainless steel body hot cylinder, can run for a long time without damage. More intuitive learning engine principles, is an excellent educational toys, teaching experimental equipment, can effectively cultivate childrens interest in learning, can also be used for classroom teaching. Its exquisite appearance and superior quality or as a high-grade collection of excellent choice. Method of Operation: Fuel: Butane gas (not including, prepare by yourself). Ignition step: First press the button to the fuel tank, then dial the above valve, ignite, wait for about 30 seconds to heat, turn the propeller to start, the position of the fuel tank has a knob to adjust the size of the firepower, for the life of the model, it is generally not recommended to adjust . After the operation, close the valve and the fire will be extinguished.