Chewy Tubes are offered to children and adults as a safe and effective tool for redirecting chewing and/or practicing biting and chewing skills. Therapists may select Chewy Tubes to use with individuals who exhibit a lot of oral motor tendencies, are developing oral motor skills, or for jaw rehab. Children as young as 10 months enjoy the tactile and proprioceptive input offered by biting on Chewy Tubes. Not recommended for children under 9 months. Use with adult supervision. Includes one Blue Chewy Tube Dimensions: 3/4″ (1cm) Diameter.