Preventive Dental Specialties Special Needs Tuffy Chewy Sensory Aids, Assorted Colors, Set of 2 Perfect for children with special needs, speech disorders, autism, and more for chewing or biting down on Durable chew surface has no liquids or gels inside Made of safe, rigid, non-pliable material Can be placed in ice water for a soothing effect Satisfies even those who crave heavy wood or metal chewing