The ColorPoP Big O is a vibrant version of the Big O vibrating cock ring featuring fun neon hues to brighten up your day or night! The Big O is the perfect couples sex toy for first-time users or anyone curious to try their very first cock ring – it’s easy to use, fun to try, and packs enough power to help couples come together! Simply stretch the ring around the base of the penis and testicles – it will fit tight and snug – with the vibrating motor on top and switch it on for instant vibration!