There are so many varieties of cockrings available for men. In it’s simplest form, a cock ring is a rubber or silicone band. It is placed around the penis, at the base whist the man has an erection. It pinches slightly, so the flow of blood out of the penis and back into the body is restricted. This means a harder and often larger erection.
Variations of this simple cockring are available. Different materials and designs mean you can choose between purely functional rings and multi-purpose rings. Some rings come as a set of 3 of differing size. This is because they are intended to be used as a traditonal cock ring, a cock and balls ring and a ball ring. Others vibrate, so pleasure is derived by the female partner as well as the male.