Looking for a way to completely prevent your submissive from talking? The Total Silence gag was designed with this exact purpose in mind.

It features three horizontal bars that are meant to clamp around the lips and the tongue, keeping them in place and preventing any motion. The surfaces of the bars are textured for extra grip and the tighness can be finely adjusted to a desired level via screws on the sides, depending on how much pain you'd like to inflict at the same time.