I found this toy to be excellent in many regards. It can be used as a cock ring, ball divider, or both at the same time. It's all about how you fasten it. It's only useful for males, of course, but couples could find quite a lot of uses for this hot little item.

This is a leather and metal item. It isn't really stretchy at all, and the leather part is textured. There is no real stimulation just from touching the item. The main stimulation is when it's fastened onto your body.

The overall design is interesting. It allows for the strap to be fastened into numerous positions. The metal snaps can snag on loose skin, so be careful when attempting to fasten it. It is slightly adjustable so you can use either one or two snaps at each attach point.

This one takes a bit of practice to use if you've never used one before. The best thing I found to try was taking a dildo with balls and attempting to fasten it onto that first. This way you can easily use both hands, without risk of any painful pinches to sensitive areas.

After using it several times, I have found several ways of attaching it.

The first method is to take hold of the longer strap and slide it underneath the balls. This way it can wrap up and snap at the upper part of your cock. You are then free to take the shorter strap and pull it up, so your balls are separated to left and right. Each strap will fasten into place, and you now have a cock ring with your balls divided.

A slightly different method is to just fasten the longer strap around your balls if you aren't in need of a cock ring or if the previous setup is too tight or uncomfortable.