Effectively reduce anxiety and stress: a safe and independent alternative for people with sensory needs (autism, hyperactivity, PDD, etc.). It greatly reduces anxiety and stress, helps to stay calm and effectively prevents them from chewing on shirts or biting their nails. 100% safe and non-toxic: Our teething toys are made of high-quality food-grade silicone. It is non-toxic and does not contain BPA, Xiersen, phthalates, cadmium, lead or metals. Fashionable, non-toxic, harmless to the body and environmentally friendly. User-friendly design upgrade: For safety, each chewing tool is equipped with a cord and a detachable buckle. Ropes and buttons are not for chewing. Children should be reminded to chew only on silicone bricks. [Durable and durable] (suitable for all chewers) Autism sensory toys are made of high-quality tear-resistant materials, which can be chewed gently and used for a long time. Product description Children’s chewing necklace The sensory chewing necklace is a safe and