Thank you, and I am quite surprised that many of you do not know it. I thought it was quite common in the US.
Here is the video of the making of it, and if you skip to 09:05 you will see it in action, just a bit though.
These things are usually used for old school wood carving projects, like big spoons, cups, bowls, kuksa's, etc.
Since the legs come of easy, it is also small in storage, which is something I like a lot since i have very little workspace.