Drawn video presentations - what tool do you need?

Question

Video

Colleagues, tell me, please, with the help of which such hand-drawn video presentations are made?
I'm not talking about creating a flash movie in a special editor, I guess that it can be done there.
Very often I began to come across this technique with a hand in a pencil, which gave the impression that there was some kind of specially sharpened tool for this.
It seemed?

Answer 1

It is necessary to google video scribe/video scribing
For example, it was found - www.sparkol.com/home.php