I've kept and bred them a couple of times over the years, beautiful and impressive animals. Expect them to be 7-8' long on average for well kept cbb animals and about as big around as a baseball...most of the ones I've had by the time they were full grown, were capable of eating a full grown jumbo sized female rat. They aren't typically aggressive, but they can have a wicked feeding response and are incredibly fast animals, much more so than you would expect from an animal that big. I never handled mine much and still had no trouble with getting them out, they could be just a little cage aggressive when I first opened their tubs, but that quickly went away when no food item showed up for them.