mould king 10225 10225 V8 Engine Building Kit with Gearbox, Mechanical Model Featuring Working Pistons and Transmission,Collection Model Gift for Adults

Individual packaging - All accessories are packed in a separate packaging bag, which is easier for everyone to understand. The packaging now includes easy-to-follow instructions. It is easy for everyone to understand and assemble.

M Motor & A Battery Box - 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.

Educational 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.