My good friend Richard "Army" Maguire has designed a new training bag that he calls a "Chubby". I had a chance to work with one while I was in LA and it truly is an amazing training tool. The one I worked with was filled with Mung Beans and weighed about 20 pounds. It was solid (due the the 20+ pounds of beans inside it) and felt like you were punching someone in the face. You can imagine that I really liked that... and look for four of them to be hanging in the school sometime soon!
Here is what Army says about the Chubby:
"New bag I developed called the "Chubby' in use with BJPenn UFC fighter
and MMA superstar. This bag is multi-functional for developing hand
conditioning , maize bag, top bottom bag application ground and pound as
well as lock compression development as demoed her by Baby J himself. This
bag also great for kids and can be taken with you as a traveling companion
piece of equipment."
Here is a picture of BJ Penn "choking" the Chubby -
