3pcs Tongue Tip Exercise Set Different Shapes Improve Flexibility Oral Muscle Strength Tongue Training Tools Item Type: Tongue Tip Exercise Set Material: PP, Alloy I Shaped Trainer Size: Approx. 146 x 30 x 11mm / 5.75 x 1.18 x 0.43in T Shaped Trainer Size: Approx. 126 x 31 x 11mm / 4.96 x 1.22 x 0.43in C Shaped Trainer Size: Approx. 146 x 30 x 20mm / 5.75 x 1.18 x 0.79in Applicable People: Suitable for orthodontics, swallowing health awareness and other people need to carry out tongue training. I Shaped Trainer: Suitable for the posterior alveolar position of the tongue to perform lateral back and forth alternate training T Shaped Trainer: Suitable for the front teeth position of the tongue up and down or left and right alternating training. C Shaped Trainer: Suitable for alternating training of mouth and tongue. Cleaning Method: Wash with warm water, wipe to clean, orthodontic effervescent tablet cleaning.