This item comes with the adorable engine model with twin cylinder. You put the fire onto the alcohol lamp, and the steam will move the engine.You can see the heat energy change into the movement energy. Note: (with instructions for pictures and Chinese). Many of our customers comes from school, colleague, etc. Sellers: Add a FREE map to your listings. The item "V-twin Model Steam Engine Generator Education Toy Kits Electricity" is in sale since Saturday, February 08, 2014. This item is in the category "Toys & Hobbies\Models & Kits\Tools, Supplies & Engines". The seller is "jzdyy" and is located in Foshan, Guangdong. This item can be shipped worldwide.