A ratchet or spreader bar on one side makes a Jennings gag adjustable. This mechanism allows a dominant to keep their submissive’s mouth open to a desired degree. It is strong enough to hold firm, even when a submissive is fighting against it.
As Jennings gags are often used in medical procedures, they are readily available from medical supply stores. They typically cost between $40 and $125, depending on their quality.
Since Jennings gags are made from stainless steel, they must be used with caution. Wearers may chip the enamel on their teeth if they wear the gag for a lengthy period of time. Some Jennings gags are dipped in rubber to prevent this. Prolonged use can also causeTMJ. Individuals who already have this disorder should never use a Jennings gag, as it can worsen the condition.
Like other gags, Jennings gags can also compromise the wearer’s breathing. For this reason, a submissive wearing a Jennings gag should be closely monitored and never left alone. Gags should also never be shared. Sanitizing methods like cleaning the device with alcohol or boiling it may damage the device, and thus aren’t recommended.