Penis rings are a ring that is placed around a man's penis, for longer erections

You put on cock rings or cockring usually at the base, primarily to slow the flow of blood from the erect penile tissue, thus maintaining erection for a longer period of time. cock rings or cockring can be worn around just the penis or penis and scrotum, or just the scrotum alone, though this is usually designated as a testicle cuff.

 Cock rings or cockring can be made of a variety of different materials, most commonly leather, rubber, or silicone, though nylon and metal are also used either as the main component or part of the closure. The term cock rings or cockring is sometimes used as a synonym for a Prince Albert piercing, a piercing of the penis that is usually, though not always, a metal ring.