Double erection ring is a simple and effective penis ring that isolates the shaft and testicles for a more intense orgasmic experience. While most cock rings stretch around the shaft and testicles together. the RingO 2 is worn with one ring around the shaft and the second around the shaft and testicles. giving an added boost to his balls with a snug and secure fit. Stretches to fit almost any size member with a stretchy sling for snug testicle support that gives men and their partners enhanced sensations and longer-lasting sex.