TEAR-RESISTANT, NON-TOXIC, SAFETYSensory chew necklace are made of 100% food grade silicone, no lead, latex, BPA, PVC, and phthalates. Completely healthy and safe, you can rest assured that your lover can use and get rid of the bad habit of biting things. REDUCTION OF ANXIETY Chew necklaces toys for autism, anxiety, oral fixations, special needs, or general teething pain.They help to greatly reduce anxiety and stress for those with sensory input disorders and provide a safe alternative to chewing on clothing, pens, desk, hands. DURABLE & LONG LASTINGSensory chewy toys for autism are made of high quality tear resistant material, can gently chewed and used for a long time.They are durable and tough, but yet soft for a therapeutic and calming effect; also great to stop nail biting or thumb sucking. CONVENIENT TO USE & ADJUSTABLE BREAKAWAY CLASPChew brick sensory chewing necklace are very easy to clean and airing, in light weight it is very convenient to use at home or outdoor. EASY TO CLEAN & STORE Our chew toy are easily cleaned by hand with soap and water to remove bacteria, or just as easily placed in the dishwasher to remove any unwanted dirt and grime after possibly falling out of a purse or stroller.