Cock Rings

So I’ve been looking on this sex toy site and was thinking about getting one (for sex mainly). However I know people talk about clamping and doing stuff with cock rings, what is their main use regarding PE?

Cock rings have no “main use” in PE. They are considered adjuncts or aids, usually for maintaining flaccid size after a workout. Some use a tight rubber or jelly one in place of a mechanical clamp, but they are difficult to remove in a hurry and are, in my opinion, a poor substitute for the cable clamp.

Hey does anyone know where which section the O rings are located in at the Home Depot?

Plumbing section.