Chewer: Light This Rainbow Star Sensory Necklace is a fun and playful design that can also be calming and soothing for those who like something softer and flexible to chew. We have paired the necklace with a matching breakaway clasp and strung it on a soft cord. The breakaway clasp improves safety by breaking open when large force is applied to it and the cord offers a soft non scratchy finish which will not irritate the wearers skin. The round edges of this shape make it easy for the wearer to work it to the back of the mouth between the molars for maximum vestibular stimulation and the calming effect that it can bring. The stars are 40 mm across at its widest and is 10 mm at its thickest point.