Children with developmental disabilities may have a tendency to bite due to their development and characteristics. Biting can provide a sense of security and relieve anxiety, but if they put things they shouldn't bite, such as clothing, in their mouths, stopping the behavior can lead to stress and tantrums. This item can be used in such situations! (Of course, adults can also use it.) It's a necklace, so you can always wear it. Having something "okay to bite" will allow parents and children to spend time together with peace of mind, even when going out ◎ ●Size Length: 6 cm Width: 2 cm Thickness: 1 cm ●Color If you want to choose your favorite color, please comment before purchasing to check the stock. If there is no designation, we will choose for you. ※Notes ◎Since it is made overseas, there may be small scratches or stains compared to Japanese products. ◎Although it is new and unused, it has been opened once for inspection. ◎We will choose the cheapest shipping method. If you have any preferences, please comment before purchasing. Also, we will use recycled packaging. Thank you for your understanding and purchase!