A rubber coated ring (inner diameter just over 40 mm) will keep your (or your boys') mouth wide open so you can shove your ...... in :-) Hmmmm nice!The coating will make sure that your dentist won't mind too much - this quality aspect of this gag makes it better then what you'll usually will find from other manufacturers.The ringsize has been carefully chosen as well: when we would make it bigger most people won't be able to swallow it (although..... ja ja, we know..... grin), but a smaller ínterior size wouldn't fit most cocks. And to be honest: it shouldn't be too comfortable as well isn't it?So with pleasure we add this cocksucker's wet dream to our already very extensive range of gags. What's on a man's mind...