The DoubleO 6 vibrating ring features two specially positioned rings for an extra-secure fit – simply stretch one around the shaft and the other around the testicles. With a powerful 4T motor delivering treble-style vibrations, new 4LR44 longer-lasting batteries, and raised pleasure ticklers, the Screaming O 4T DoubleO 6 provides couples with mutual super-powered pleasure right where it counts!