What are those drawing paper boards called

[Four]

There are these things where you can write on by putting pressure, and by lifting the paper it clears. I really want one to like write ideas & scratch work and stuff down and quickly erase it.

I used to have one a long time ago and looking for it again

 

[lisab]

I think you're referring to the http://kellykilmer.blogspot.com/2008/09/magic-slate-magic-drawing-pad-mystic.html" [Broken].