When fully open isn't big enough, the Fetish Fantasy Extreme Spider Gag will do the job!
This extreme gag consists of a steel ring with four curved metal "legs" attached to the ring. The gag and legs prevent the mouth from closing, leaving the subject's mouth wide open for whatever you want to put in it.
The ring diameter measures 1.5", and the gag connects to a leather strap that buckles in the back and holds the gag securely in place.
