Mould King V12 Engine Model Building Kit that Works Build Your Own Cars Combustion BatteryMotor 10205 Blocks Sets STEM Toy Gift for Adults 14 V8 Engine Series for Display Collection733 Pcs

14 Scale V12 Engine KitThis 733piece building set features the classic crankshaft structure at the front with gears and chains enabling it to rotate like a real engine 11 Restore Dynamic PrincipleThe driveshaft chain and gears are all functional It comes with an M engine and a 9V battery box requiring 6 AAA batteries not included EasytoAssemble STEM ToyA DIY kit suitable for teenadults 12 The parts are neatly organized in bags according to assembly steps for easy construction Its an excellent gift choice for birthdaysEaster Perfect for Car Enthusiasts and CollectorsFor car enthusiasts collectors or mechanical aficionados a functional engine model is a musthave Its exquisite design makes it perfect as a desktop display piece Quality ServiceIt comes with an XL engine and a 9V battery box requiring 6 AAA batteries not included If any parts are missing from your set please contact us and we will send you the missing parts