Thanks Raven! (Gee, I wish I knew real NAMES ....)
I was always a fan of the polished roll hoops but never a real fan of the shape until i found these. They are also structural. Made by Startech in Germany. The only way to get them is directly from Germany. Worth it in my opinion.
not structural either of the hoops shown bolt into stock brackets, although must be better than the stock padded aluminum parts.
Instead also use JonB to buy the Autoform rollbar that is structual and is frame mounted