ABCs of NHB: Extreme Boxing Chain Drills DVD by Mark Hatmaker
Product Review (submitted on July 31, 2007):
This is a fanastic series that increase your Boxing and striking skill a lot. The only thing I didn't like about it is the tit for tat method of chain drills. You strike, he blocks, he strikes, you block and so on. No one really fights that way, but it's still a great way to adding dynamic striking to your arsenal!