mould king 10207 10207 V12 Engine Building Blocks Kit with Working Motor - Realistic Engine Model Kit for Adults & Car Enthusiasts, DIY STEM Mechanic Engineering Construction for Kids

【Dynamic V12 Engine Replica】Assemble a fully functional engine model kit with moving pistons and rotating crankshaft powered by battery motor (battery box need 6 AAbattery, not include). Perfect display piece for car enthusiasts' man caves or office desks.

【Engine Function Presentatuion】 This engine model kit shows the detailed turbocharger and fine exhaust system through the blocks. The switch of the battery box has two directions, which can control the direction of gear rotation, realizing two directions of work and reproducing the real dynamics.

【Stress-Relieving STEM Project】Immerse yourself in 6-8 hours of therapeutic assembly with our color-coded instructions. Engine model building kit becomes accessible for first-time constructors while keeping car geeks engaged.

【Smart Gift for Gearheads】 761 blocks are packed according to the steps and stored in a colorful cardboard box, the finished size of the engine build is 24*15*14cm. Ideal birthday gift for automotive engineers, mechanics, or anyone passionate about V12 engine mechanics.

【Note】 The engine model kit that works is made of ABS material, which meets the standards for children, is safe and non-toxic, and can be used with confidence.