Extra large training aids that provides great grip with the tongue. Easier to feel with the tongue. Easier to follow for the therapist in a mirror and mouth breathers find it easier to use.
The tongue trainer is made in an extra large size to make it easier for the user to find it in the mouth and to maneuver it in the desired direction.
Letsip K4 10m/.39"m ball on 55mm/2.16" wire