V8 Engine TECHING 3D Metal Mechanical Engine Model Science Experiment Boys Toy 500+Pcs Features:.Exquisite Model Decorations: V8 engine model kits, highly textured metal parts, bring you all the knowledge about the wonderful world of mechanical engineering in an immersive environment. You will build your own V8 engine.Complete Accessories: The engine consists of 500+pcs parts and comes with a paper English instruction book. You will personally experience the whole process of assembly from small parts to complete products, and build a shocking V8 engine model..Simulation Model: The V8 engine can be driven by a motor, which is more realistic and interesting. You can observe the engine running process throughout the process. It is not only an exquisite decoration model, but also a simulation dynamic model that can simulate the operation of a real engine..Excellent Steam Toys: Adults can assemble with children to enhance parent-child interaction; give children the knowledge of science and industry, increase their knowledge and imagination; develop mental and logical thinking, and develop innovative and creative abilities.Gifts: The products are packaged in high-end metal gift boxes, which are the best gift choices for friends and relatives.For Ages: 12+Specifications:.Color: As Shown.Material: Aluminum Alloy + Stainless Steel.Coloring Process: Anodizing.Number of Parts: 500+pcs.Lithium Battery: 3.7V 500mAh.Charging Voltage: DC 5V.Charging Time: 2 hours.Usage Time: 1 hour.Assembling Difficulty: 5 stars.Assembly Time: About 5 hours..Product Dimensions: 17.2 x 19.8 x 18cm.Product Weight: 2550g.Package Dimensions: 34.2 x 24.2 x 15cm.Package Weight: 4500g.Packing: High-end Metal Gift BoxPackage Content:.1Set x V8 Engine.1Set x Installation Tool.1 x User Manual