http://www.youtube.com/watch?v=NNUB-fusvmE&feature=related
I think this one has been on the board before but in a shorter version

It says that it is yang style but the movements he does before he pick up the ball looks more like chen
After the form is done - if it is a form/kata - there is a guy speaking chinese - as i dont speak the language i have no idea what hes saying
Does anyone know what the ball is made of - wood or maybe something heavier - or maybe a lighter matreial like rubber or something like a medicinball, guessing that one could use whatever one like or can manage to lift

Tobbe

it looks kind of like a bowling ball. Id imagine there has to be some weight to it, since they were doing two man drills with it.