SAFE MATERIAL- 100% made of food grade silicone chewy necklace, durable and long-lasting. Third party tested free of BPA, PVC, latex, phthalates, and lead. Our chewies for kids sensory are completely safe and non-toxic. WIDE APPLICATIONS - Shark tooth sensory chew necklace is the perfect natural way to calm & improve focus for anxiety, autism, ADHD, SPD, etc. The soft teether toys help to soothe teething pain, effectively reduce nail-biting and thumb sucking, and also provide a safe outlet for pressure and stress. POPULAR & STYLISH DESIGN- Adjustable cord & breakaway clasps make the teething necklaces safe for all kids and adults. Fashionable shark tooth design sensory chew toys will accessorize any outfit and won't embarrass you when you wear it in public places. EASY TO WASH- Just wash this silicone chewable necklace with water and mild soap, and hang to dry, so easy Dishwasher available. PACKAGE INCLUDES- 4 pack sensory chew pendants with 4 different colors ( blue, green, orange, yellow )