The Screaming O DoubleO 8 vibrating erection ring features two specially positioned rings and a vertical vibrator angled for maximum stimulation where traditional vibrating rings can't reach! Simply stretch one ring around the shaft and the other around the testicles for an extra-secure fit and super-powered pleasure where it counts! Vertical vibrating double ring. Extended angled vibrator for full-motion contact. Double rings for a snug grip - 1 for shaft & 1 for testicles. Super-powered bullet motor for mutual