Children's smart jigsaw puzzle

The overall simulation station elements are the theme. There are 5 trains in the station, the front of the train is the theme, and the building block compartment is the content. The building blocks are easy to distinguish the distribution of the theme and content. When children are using the product, they are full of knowledge just like station staff. After pressing all submit, the "station" will make the sound of the train leaving and the flashing lights, implying that you will return with a full load of knowledge.