I doubt it's any different than their regular dough - just more of it.
I want to see how they stretch it to 2 feet. Is there a video about it in internet?
When stretching dough, it naturally wants to stay in the same aspect ratio as you begin with. When people ask how to make round pizza, I tell them start round, finish round. What I mean is that if you carefully press your ball open into a round shape of generally even thickness, it's pretty easy to stretch it into a round pizza. If you start with something that is not round, it is much more difficult to make a round pizza. The same applies here. Press it out into a rectangle and just be mindful of a rectangle shape when stretching (your hands will do what you brain is thinking).