- These trainers can be used for numerous things. -The Tongue Tag actively trainset positioning of the tongue tip as in myofunctional & speech therapies. - The Tongue Guard stops tongue thrusting when in place and forces the child to breath through the nose. - Lip Bumpers are to discourage over active metalis muscle activity. - Edge to edge Class I jaw position is produced when in place. **For further product information, please contact Chat Support**