Encore Individual Replacement Tension Rings-Size 7 (3/4 Inch);

Encore replacement ring (support ring, tension ring, or constriction ring) is a ring that is placed around the base of a man's penis after he has used an FDA approved vacuum erection device. The purpose of a tension ring is to slow the flow of blood from the erect penile tissue, thus maintaining a rigid erection for an extented period of time. Do not use for longer than thirty (30) minutes at a time and allow sixty (60) minutes in between uses.