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A Pos-T-Vac Ultimate II Round tension ring, or support ring, is a ring that is placed around the base of a man's penis. The purpose of a tension ring is to slow the flow of blood from the erect penile tissue, thus maintaining a rigid erection for a period of time. These tension rings are designed to be used by men experiencing erectile dysfunction and/or impotence.
Pos-T-Vac individual replacement tension rings will work with any FDA approved vacuum therapy system.
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