Description:Steam train engine is the most difficult assembly engine in the DIY Engine Collection.The steam train engine DIY kit is designed based on steam train, but work with electric motor instead of gasoline. This steam train engine is sent with kit (295Pcs) with a metal box. So people has to assemble the parts and components. The whole process is close to the professional assembly line process. It is interesting and full of experience.Features: - High Craftsmanship: The whole steam locomotive train engine is made of metal. With CNC precision casting process, aluminum alloy oxidation, looks gorgeous. Ideal for gift collection.- With Sensor: The train is with sensor, when it running on track and close to obstacle, it will turn back and forth automatically. - Working Principle: It it an electric engine, works with electric motor and 450mAh lithium battery. - Hardest Assembly Kit: The steam train engine is consisting of 295 pcs, the whole assembly process take around 4 hours. While assembly, you will understand the car working structure. Challenge yourself and prove yourself, build confident in between.- Ideal Gift Choice: With competitive price and high-end package, ideal gift for yourself, friends, colleagues or family members. They will 100% love it. Specifications:Brand: TECHINGProduct model: DM221 Material: Aluminum Alloy + Stainless SteelProcess: AnodizedParts: 295pcs Track weight: 200gNumber of tracks: 2 sectionsTrack length: 32cmCharging voltage: DC 5V,Lithium Battery Capacity: 3.7V, 450mAhCharging time: 2 hours Working time: 1.5 hoursAssembly time: about 4 hoursAssembly difficulty: IV gradeProduct size: 300*77*125mmMetal Box Size: 342*242*120mmG.W.: 2.4 kg Suitable age: above 14 years" oldPackage included:1 Set x Steam Train Assembly Kit (295 pcs)1 Set x User Manual1 Set x ToolNote:Batteries are not included and need to be purchased separately.