Sensory Teething Necklace Works For Soothing Teething Toddlers, And Soothing Anxiety and Stress In Older Kids. Helpful for Oral Sensory Issues Often experienced with Autism and ADHD BPA phthalate and Lead Free 200% Food Grade Silicone Reduce Bad Habits Such as Biting/Chewing Finger Nails and Clothing, Thumb Sucking. Easy to Clean. Dishwasher Safe. Suitable for Ages 3 Years and Older. *DO NOT USE for sleep. Monitor for Choking. This Was “Sampled” And Rejected. Washed in the Dishwasher. Buyer Should Wash Again Before Using. We Sampled Several Types of Sensory Chews Trying to Find What Would Work Best for Our Son Who Experiences Autism. I have 3 Different Types for Sale In My Closet. Bundle & Save!