100% SAFE FOOD PURE SILICONE- All the silicone chewable necklaces are safe for kids, Free of any lead, BPA, PVC, The chewing necklace also comes with a breakaway clasp to prevent accidents. Age 3 yrs plus only. FUN SENSORY CHEWY TOYS - Compared with other ordinary oral motor therapy tools, dinosaur chewing toys are more interesting to the kid. It's a perfectly natural way to calm & improve focus for anxiety, autism, ADHD, SPD, or hand fidgeters. MEDIUM FIRMNESS Our oral chew toys are the perfect texture for chewing. They are soft to the gums even if still very durable for long term use. Our chewy pendant has a specially textured surface and soft feel, and the medium firmness will be the right fit for most chewers that your kids will love it. EASY TO USE - The necklace pendant cord is adjustable so that you can find the right length for your child. Created specifically to be the right size this means your kids can easy to hold and chew. When you need to wash, rinse with water or soapy water. RISK FREE TRIAL - We offer a 100% risk free trial to ensure that our chew necklace meets your children chewing needs. Please do not hesitate to contact us if any questions.