Okay, so we went to TSC, (the only place around here that carries hog rings) and we bought the smallest size and some pliers. We went and attached our chicken wire to our cage, and when all was said and done, we decided that the sharp points of the hog rings would hurt our rats. Somewhere in that whole mess I ended up with tiny litte razor blade cuts all over my hands and didnt notice a thing until chris was like "eww, what did you do!". (blood everywhere!) So, I went through and threaded and weaved this 22 guage wire around the corners and top of the cage, and we went about removing all those hog rings. That wasn't fun.