Useful for those with speech or eating-related issues who need to strengthen related muscles;Chewy Tubes are an innovative oral motor device designed to provide a resilient, non-food, chewable surface for practicing biting and chewing skills.;Made of FDA approved thermo-elastic polymer material- NO latex, PVC, lead or phthalates;Helpful to individuals who are developing initial oral motor skills, or rehabilitating the jaw;Not recommended for children under 9 months