[★ SAFETY MATERIAL - Our silicone chew necklace for kids boys girls is made of highest quality food grade silicone 100% BPA free PVC free Phthalate free Cadmium free Lead free and Latex free. Absolutely safe and healthy sensory chew necklacs. ★ SAFETY DESIGN - Flyaway chew necklace for girls and boys has breakaway clasps and individually knotted for prevent choke hazard. Silky smooth cord will not pull your hair. ★ EASY TO CLEAN - Rainbow sensory chew necklaces toys easy cleaned with mild soap and water dishwasher safe. ★ MULTIFUCTION - Chewy necklace sensory can provides pain relief and superior visual stimulation improves motor skills and supports brain development also good for autism children. ★ADJUSTABLE CORD & BREAKAWAY CLASPS – The string of this sensory chew toys for autistic children is adjustable and clasps are breakaway which make the necklaces are safe enough. Adult supervision should always be required when using this chew toys for kids.]