Specification:Item Type: Engine ModelProduct Material: Aluminium Alloy, Glass, BambooSize: Approx. 11x6.4x6.5cm/4.3x2.5x2.6inRough Weight: Approx. 285g/10.1ozScope of Application: For Children's Science Projects, Physics and Mechanical Learning, Classroom Presentations, Etc.How to Use:Add two thirds of 95% alcohol (not included) to the alcohol lamp, light it, heat it for about 10, then turn the flywheel and the engine will runPackage List:1 x Ornaments1 x Alcohol LampNote:Please allow some error due to manual measurement.