See Purse Rings sizes and specs here.

Patent Pending. 

These rings come in various sizes for various applications. These rings can be used on the bunt breastline rings, corkline cowboy line rings, in addition to purseline rings. 

I could not break test these floating rings because they do not reach a breaking point as much as they reach a ‘yield’ point, where the material starts to stretch. There was not enough travel on the test machine to reach a breaking point. This material will not shatter like the brittle nylon rings, it slowly elongates. You won’t lose a set of fish for them breaking, you may have to replace a ring or two if they deform too much. With thousands sold I have not had a report of any breakages. A Kodiak fisherman I know sawed through a few of his trying to get off a really bad snag.