Originally Posted by
greynotsoold
You can do the same sort of thing much less expensively. Make marks on your heavy bag, to represent the liver, solar plexus, that last rib on the left side, the chin, etc...Ringside used to sell this thing, real cheap, that you could strap around your bag. It stuck straight out, like a jab, the height was adjustable, and you had to slip the whole distance, if that makes sense. And it will once you get into it.
For years and years I bought every bag that came out. Get a heavy bag and get to work.