Rubber coated stainless steel Jennings toggle You probably know this device as something doctors and dentists use to keep their patients' mouths wide open. However, you can use the same device on your partner to keep their mouth open for more devious and playful purposes. The gag uses a hinge with a ratchet function, keeping it firmly in place. For extra comfort, this gag uses a black rubber coating (which also prevents the gag from slipping). So prepare to easily see what's in your partner's mouth. Better yet, get ready to see what you can put in your partner's mouth with ease.