7-in-1 construction vehicle: The 7-in-1 construction vehicle consists of a dump truck, a concrete mixer, a drill rig, a cutting cart, excavators, bulldozers and an asphalt paver. Bolts and auto parts need to be reassembled, disassembled, reassembled, repaired, and repaired. Funny Design: A cool and fun design for kids, kids can assemble the car by themselves. Disassembling and assembling can improve children's logical thinking, creativity, practical skills and hand-eye coordination skills, as well as the ability to distinguish between shape and imagination. No battery required: No battery required, children can play the vehicles freely and safely without parenting supervision. All you have to do is push the car forward slightly and it will drive and last quite a long distance. Increase parent-child interaction: Parents and children can assemble the construction car and improve parent-child communication. Most importantly, they can subconsciously practice and learn body coordination, sensory perception, motor skills and teamwork. It increases the children's self-confidence and sense of achievement. Special Gifts: It is also a good idea to give gifts for kids birthday, party, Christmas or festival gift, good for 3 4 5 6 7 boys girls. Provide children with a unique fun time. Tips: Suitable for children over 3 years. Under 3 years of age, children should be used under adult supervision.