What is the big graffiti wall in the kindergarten you see?

I don't know if you're talking about the Uriu

magnetic whiteboard

wall or magnetic photo wall, both of which can suck magnets, you look at the top of the picture, if there is a picture, if there is a magnetic photo wall, and if it's a pure white is a whiteboard wall. I have seen in many kindergartens, quite interesting. The children painted very happy!