Silicone Cock Ring for Vacuum Penis Pump 3 Pack
A cock ring is a ring that can be placed around a penis, usually at the base, primarily to slow the flow of blood from the erect penile tissue, thus maintaining an erection for a much longer period of time.When used with a pump a lubricating gel is always used to help the pump to maintain a vacuum (in the same way as vacuum grease is used with a vacuum pump in scientific applications). The gel also helps to slide the ring off the pump, and later to remove it from the penis.