This is an original novelty item by René Magritte, purchased at a museum in Belgium. It's approximately A4 size. It's a magnetic sheet, and the surface is like a chalkboard, allowing you to write notes with chalk. For example, you can stick it on your refrigerator and use it as a memo board. I haven't used any chalk on it, and I've only used it as interior decoration, so it's almost as good as new. It's recommended as it looks stylish just by sticking it on a white wall or appliance. I'm selling it because I bought a black refrigerator and no longer have a use for it.