It's made of regular building supplies (cement, wood, plaster, etc.) but the inside has a bunch of LEGO activities and decorations. It only looks like it was made of LEGO on the outside. Optical illusions!
I mean, it's kind of a good and bad thing. The good thing is it won't really be a distraction for learning (teachers hate that...). The bad thing, though, is not being able to spin spinners. Something even worse, if some kids have ADHD and need a spinner to focus, they won't be able to because schools banned the spinner. So, I kind of agree with you.