The Trojan Duo Vibrating Ring features twice the vibrations of traditional vibrating rings, for more pleasure. The Trojan Duo includes two vibrating bullets: one lies above the penis, while the other lies above. This way both partners experience maximum vibration. The Vibrating Duo is easy to use, stretchy and comfortable. Just slide it over the erect penis to the base, and turn on the bullets. She’ll experience more clitoral stimulation and he’ll benefit from the blood constriction, making him feel harder and bigger. Contains: 1 vibrating ring, 1 condom. This ring is disposable and lasts about 20 minutes.