I started off with the three incher to chuck around and play with at my desk job. It had a nice heft and was a good way to elevate the heart rate slightly. Then I discovered that there was a four incher and couldn't resist. It was at this point when my office mate started giving me concerned looks. Maybe because of my fascination with playing with heavy, shiny, round things, or perhaps the repercussions if I would ever miss a catch. Two years later: "holy crap they have a five incher now". This thing weighs a good 20 lbs and will put craters in the floor if you happened to drop it, not that I speak from personal experience. Coincidentally, I don't work at that desk job anymore. God knows what I'd do if they ever decide to start selling a six incher...The price of this thing seems to fluctuate a lot over time. I got mine for $85, and at the time of this review, it looks like it's selling for $143. I was watching the price of this item for at least a year before I bought it. If you're not in dire need of this fine piece of destructive mass, it might be worth doing the same.perfect converson piece !!These work great as ammunition for my 18-pound cannon. Very accurate too.