Mould King 10200 Truck Engine Building Blocks Toys Sets, MOC Engine Model with Battery Motor and Gearbox, Collectible Construction Kit Gift for Adults (3070+ Pieces)

Product description

• Classic Truck Engine Model The Mould King truck engine set features numerous realistic details, such as simulated piston movement and a gearbox that allows for gear shifting. It's the perfect gift for car enthusiasts and future engineers!
• Mold King 10200 All accessories are individually packaged for easy understanding. The package now includes easy-to-understand instructions. Everyone can easily understand and assemble it.
• Electrical Dynamic Version With 1*L motor and 1* battery box. (REQUIRES 6 AAA batteries, NOT INCLUDED). This Engine Model Kit is electrically driven mode,which can be run after assembly. Its compact design can achieve high power output in a limited engine compartment.
• STEM Toy Gift Simulate the adjustment of blade speed through a shiftable gearbox, and use the truck engine model to observe the engine operation and produce realistic sounds. This is the perfect STEM toy for those who seek a combination of education and entertainment to satisfy their curiosity.
• Customer Service Mould King building block sets are suitable for children, teenagers, adults and collectors. Our packaging process is fully automated. If any parts are missing or parts are damaged during assembly, please let us know. We provide free spare parts.