• 1:4 Scale Boxer Engine Kit：This 2375-piece building set includes an exhaust system made of the cylinder head and exhaust pipes. The fuel and cooling systems are displayed through the radiator structure.
• Perfect for Car Enthusiasts and Collectors：For car enthusiasts, collectors, or mechanical aficionados, a functional engine model is a must-have. Most parts of Electroplating Create an Authentic Metallic Texture. Its exquisite design makes it perfect as a desktop display piece.
• 1:1 Restore Dynamic Principle-The driveshaft, chain, and gears are all functional. It comes with an M engine and a 9V battery box, requiring 6 AAA batteries (not included).
• High Standard Service：The Mould King building model is made from high-quality ABS material and meets child safety standards. If any parts are missing from your set, please contact us, and we will send you the missing parts.
• Easy-to-Assemble STEM Toy: A DIY kit suitable for adults /teen/kids 12 . The parts are packed in bags according to the instructions for easy assembly. It’s an excellent gift choice for birthdays/back to school/Easter.