hg5,
If you do get this, you'll have to find one that is close to your girth. You don't want to have it big or to small. The next thing that you'll need will be some kind of hook to hang from the strap.
The rope that I use for hanging the weights is a 3/8" polypropylene rope, then I found a metal 1." dia. clothes closet rod and cut it down to 10.", drilled a hole through one end, and put a bolt through that end. With the rope I cut it 18." long, then melted both end to a point so I could feed the end back into it self so you have a loop on each end. Then you feed the rope down through the center of the rod, then you slide the bolt out enough to catch the looped end, then slide the bolt back through again.
Now you are ready to stack your weights.