FOR SENSORY MOTOR NEEDS: Chew necklaces are helpful for children with autism, ADHD, SPD and oral motor disorders. They help to significantly reduce anxiety and stress for those with sensory input disorders and provide a safe alternative to chewing on clothes, pens, desks, hands. Safe and Non-Toxic: Made of silicone food grade, BPA-free, PVC-free, lead-free and phthalate-free. Its adjustable cord and detachable buckle make it safe for most children to use. GREAT FOR: Disc is ideal for adults/children who chew moderately to encourage oral motor exploration and offers a variety of different textures. Its discreet size and shape make it ideal for teenagers and adults. The breakable collar allows for safe biting, cleanliness and having the disc close at hand when needed. Want to surprise someone? This sensory chew toy is a perfect gift for your child, nieces, friends' daughters, children on birthdays, children's parties, Christmas and other special occasions. Instructions and suggestions : This product is not a toy. All users must be under the constant and direct supervision of an adult at all times when the chew collar is in use. The clasp and lanyard are NOT intended to be chewed on. Wear is normal given the nature of use. Please do not use if damaged, wash thoroughly before first use and after each use, including cord and clasps.