Not sure but it looks like a magnetic blackboard, These can be purchased at a website called Billyboards.com. You would want what is called a porcelain magnetic black board and it can be custom sized or comes in a few standard sizes as well.

The URL is http://www.billyboardsmfg.com/frameless-chalkboards.html

Would magnets really be strong enough to hold pans??

yes. That is what you are looking at in the picture. Those are magnets