Made in the USA, ARK's Krypto-Bite® Chewable Gem Necklace provides a safe, wearable, and discrete solution for kids and adults who need to chew. The stylish crystal pendant is sure to be a hit for all ages and genders. Use this "chewelry" as an oral fidget (or even hand fidget) to help calm, soothe, and self-regulate during times of stress, or to better focus during homework and other activities. ARK's Krypto-Bite comes in 3 color-coded toughness levels: Standard = The chewiest, recommended for mild chewing only XT = Firmer, but still chewy, for mild to moderate chewing XXT = The most firm, recommended for those who like to chew on firm / fairly rigid items. This is also the longest lasting level for avid chewing. Features: Each pendant is sold individually with its own breakaway necklace cord Designed, manufactured, and assembled in the USA by ARK Therapeutic Each pendant is medical grade, FDA compliant, and contains NO lead, phthalates, PVC, BPA, or latex Each pendant measures 7.6cm in length and 1.2cm in diameter The cord measures approximately 90cm in length. If desired, you can shorten the cord by scooting the thread out of the clasp, retying the knot at a shorter length, and then trimming the excess thread. Highly recommended for individuals who have Autism, sensory needs, anxiety, ADHD, etc, or for anyone of any age who needs to chew. Safety Information: This chew necklace is not a toy. The cord and clasp are not designed for chewing. Contains small parts – adult supervision is required. Inspect frequently and replace at the first sign of wear or damage. Chew durability will vary based on intensity, frequency, and individual chewing style.