This mechanical engineering vehicle building block kits is assembled from 4883 building block parts and has colorful paper instructions to help you easily assemble it. You can complete it with your lover or family, it will be a very interesting thing. Mould King engineering car 17027 is a dynamic version, with motor and lithium battery. This product restores the original to the greatest extent and supports functions such as opening the door, deploy/ telescopic the front arm, swivel crane arm. All our building blocks are made of high-quality ABS materials and carbon fiber materials. It is designed in accordance with common standards and can be compatible with your existing brand toys. All parts are easy to assemble and will not fall apart. ​The road rescue vehicle cars is a cool model toy, a new set that can be added as a collectible. At the same time, this is also a perfect holiday or birthday gift, if they are building block toy lovers or collectors. ​Mould King building sets for teenagers, adults and collectors. Since the packaging process of the product is fully automated, if you find any parts missing in during the assembly process, please contact us in time and we will resend them to you. Mould King 17027 Road Rescue Vehicle Building Block Kits