i have been looking for a punch bag type machine that tests how hard you punch in psi, pounds per square inch, and my searches have gone bad, i cant seem to find one anywhere. i want to buy one for my gym at home, does anybody know of a place that sells them? or who i should contact about buying one? or anything information atall? like the one ivan drago uses in rocky 4! Please Register or Log in to view the hidden image! peace.