It is painted on 10 mm thick birch plywood with dispersion colorants. The top coating is a child-friendly (EN 71-3) aqueous varnish.
(So this isn't made with the same paint that dadu usually use. It's not kid-friendly, but if you have colorful walls, there's a good chance that they mixed the wall paint with that kind of colorant.
And finally we covered it with a certified child-friendly varnish, which makes it more durable, easier to clean and seals this layer of paint.)
It consists of two sheets that can be easily joined together, so there is a base and a background that form a continuous image.
Each sheet is approx. 46x34½ cm.