[SAFE MATERIAL] - Food grade silicone chewy necklaces, BPA free, phthalate free, lead free. ^[EASY TO CLEAN] - sensory chewable necklace are easy to clean in the dishwasher or by hand wash / rinse with just water. Freezer safe, a best baby shower gift. ^[DISCREET AND STYLISH DESIGN] - Adjustable string & breakaway clasps make it safe to use for most children. Fashionable shark tooth design baby teething necklace easy to grab, not stuck in throat. ^[APPLICATION] - Our chewable pendant necklace is designed for kids & adults with anxiety, autism, ADHD, SPD, hand fidgeters and oral motor needs. The soft teether toys soothes the pain of teething. ^[MORE DIFFERENT DESIGN] Silicone chew necklace for kids and adults have many different styles. Boosts confidence and reduces anxiety.