Feature:1. Manufacturing Material: The engine model is made of high quality aluminum alloy, stainless steel and copper materials with fine workmanship, which can effectively avoid rust and extend service life.2. Educational Significance: It's a great educational toy and a great classroom or laboratory tool, which can stimulate children's interest in physics.3. Gorgeous and Stylish: This is a wonderful and dreamy product, and elegant gift wrapping makes it gorgeous and stylish.4. Wide Range of Applications: With a wide range of applications, it can be used as an excellent gift for children's science projects, physics and mechanical learning, classroom teaching props.5. Best Birthday Gift: This is undoubtedly the best birthday gift for friends, family, parents, children.How to Use:Fix the model on the base or bracket, connect wires according to the instructions, and connect the power supply. After all connections are installed, check whether the screws on the model are loose and whether the throttle is closed. After checking, fill the cooling tank with about 3/4 cold water.Specification:Item Type: Mini Internal Combustion Engine ModelWeight: Approx.1824g / 64.3ozMaterial: Aluminum Alloy + Stainless Steel + CopperProduct Size: Approx.17 x 12 x 8.7cm / 6.7 x 4.7 x 3.4inIgnition Voltage: 6.6-74VScope Of Application: Suitable For Children's Science Projects, Physics And Mechanical Learning, Classroom Te