1、MINI SIZE: Small construction toys have mini size, palm size, which designed specifically for children, and can easily put in pocket and can be carried around.2、SIMULATION ENVIRONMENT: Small construction vehicles simulate the environment of moving sand and other materials at a construction site and are suitable for role playing.3、EDUCATIONAL: Different engineering toy vehicles can enhance the relationship between parents and children, develop the practical abilities and thinking abilities of kids.4、SAFE TO PLAY: The edges of all toys are polished smooth, burr free, comfort to touch, and do not damage hands, and are suitable for children of all ages.5、ALLOY MATERIAL: Kids engineering truck toy set is made of excellent alloy materials, making it very strong and not easy to damage when falling.