Bon4 solid, no-hinge rings available?

I apologize if this question has been asked before, but....... I have looked but not found solid rings for Bon4. i would like to try a Bon4 but, based on prior hinged ring experience, will not even attempt to use a hinged ring device and am not interested in adding tubing to the ring - which for me only creates another chafe spot at the edge of the silicone tube. i need a solid ring.

Any advice ?

 

I guess the answer is NO. Someone ought to make a solid ring for Bon4 because the cage sure looks good and effective.