Experience a sensual adventure with your partner and the Innervibe Duet Double Vibrating Ring. Specially designed for both you and your partner, this vibrating penis ring provides powerful sensations and double the pleasure. The Duet Double Vibrating pleasure ring is made out of soft Opulux material and has been examined, tested and proven non-toxic. Phthalate free. This disposable double vibrating ring stretches to fit over his penis and stimulates her clitoris and his testicles, with two vibrating parts. Both partners will experience maximum sensation.