double end bags (clip fo me hitting one)

Wai Jia: The Kung Fu Forum Kung Fu Forum
1

any of you train with these? here is a clip of me trianing with one:
http://download.yousendit.com/92A7A6600897F02D

I also do some elbows on it sometime sbut lately Im just practising boxing skills.

2

I love the double end bag.