All you really need for this move is flexibility in your legs.
It is a very nice move when done well.
It's hard for me to do it, since as my name should suggest, I'm not very flexible.
Wicket does them very well.
If you've seen LaHaine (french movie) - there's some bboys from Aktuel Force dancing - there's a guy in a tracksuit that does this move really nicely.
If you go to
www.style2ouf.com you should be able to find the clip of the breaking sequence.
It's simple called La Haine from what I remember.
Peace