Chewy Tubes - Green - Chewable Oral Motor Chewing Aid Designed to be a chewable surface for practicing biting and chewing skills Knobbies' on stem provides for even greater oral and tactile stimulation Provides calming benefits for a sensory diet. - 0.8 x 4.5 x 6 inches Non-toxic, latex free, non flavored - This item cannot be returned. From Nasco - The Leader in Education Products for Over 75 years