I purchased several of these to replace them for my child who has a biting habit, but since they only use their favorite color, I'm selling the rest. A little story about how I came to buy them ↓ My 4-year-old child originally had a habit of biting their nails. Recently, they started biting the flesh of their fingers, sometimes causing them to bleed from biting too much. They are said to have a tendency towards ASD, but it's unclear if this is due to their characteristics. It seemed like they wanted to chew on something because their mouth was lonely, rather than wanting to bite their nails, so I tried to distract them with candy and gummies, but I was hesitant to give them too many sweets. However, they wouldn't eat dried sardines or kelp, and I was wondering what to do when I discovered this product. I think it's like an extension of a baby's pacifier. Good points: ・They can chew on it whenever they want by wearing it around their neck. ・The length of the string can be adjusted. ・It's more hygienic than putting it on the ground because it's worn around the neck. ・It's made of silicone, so it's easy to clean. Points of concern: ・There is a unique silicone smell. (It faded with use) ・When wearing it around the neck, I was concerned about the fibers of their clothes sticking to the silicone and then being put in their mouth. ・In my child's case, they don't wash it themselves after putting it in their mouth, so I was concerned about leaving it as is. ・While it directs the desire to chew towards this product, it doesn't provide a fundamental solution. ・There is a concern that they might become dependent on chewing. Despite the concerns, it was effective in temporarily relieving the urge to chew, so please give it a try. #SiliconeMade #ChewNecklace #ASD #ADHD #SPD #PanicDisorder #AnxietyRelief