The oral cavity and the tongue can be different for each person.

Therefore, you may have to adjust your gag for your needs.

For the tongue frenulum there is a prepared place to cut out. If the vacuum effect is too strong, you can reduce it by cutting a hole in the front of the tongue area.

Cut out for tongue frenulum with scissors.

Identify the intended place

Cut on the right

Cut left

Cut in front

Done

Cut out for tongue frenulum with revolver punch pliers and scissors Identify intended place Punch hole Cut right Cut left Done Remove vacuum effect by punching hole Bring catch as far forward as possible Punch hole Optical control