Speech Pathology LLC Chewy Tubes are innovative oral motor devices designed to provide a resilient, non-food, chewable surface for practicing biting and chewing skills. These tubes offer a safe, non-toxic surface for developing biting and chewing skills, and can be used by both children and adults alike. Use of this product should be supervised by an adult at all times. The green smooth super chew offers a solid and smooth surface for practicing biting and chewing skills. The closed loop handle is easily grasped by little fingers. Pack of 3.