Differences of the new Jopen cockrings?

Constructive discussions on Cock rings:

Ever been hurt during bdsm play?
Broken skin, missing teeth? Scars?Tell us your war stories

Bought my man one, how many of you use it for pleasure and not size?
I was curious. I know a lot of men use it for size, but others use it for pleasure. Opinion?

What is the best type of material for a ring?
I'm curious cause I would love to purchase one later on, I'm just wondering what is the best material, which is best for the most stimluation?

Sharing Photos of Our Toys
Hello, everyone! I decided to make a thread to share with everyone the photos that I took of my Elegance vibrator and then thought, hey, why not just...

How safe is a penis pump?
I plan on using one on my man tomorrow night to test it out for his ED, but reading some negative things all over. Are these safe? Should he be the...

There might be more differences as the reviews come out, but from what I can tell initially it's just the shape of the upper portion of the ring.

size