This ring has three joined rings, one 2 cm in diameter, another 3 cm in diameter and another 4 cm in diameter. The largest ring should be worn around the scrotum, the second ring should be placed around the testicles, and the last one around the shaft of the penis. Using a ring that is placed on the penis restricts blood flow and will result in a fuller and harder erection, while the ring that goes around the testicles prevents them from contracting, thus prolonging orgasm. Diameters: 2 cm - 3 cm - 4 cm