This ring features four joined rings, one 4 cm in diameter, one 2.5 cm in diameter and two 2 cm in diameter. The largest ring should be worn around the scrotum, the second ring should be placed around the shaft, and the two smallest rings should be placed around one testicle each. 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: 2x 2 cm - 2.5 cm - 4 cm