1, Chew, 3 Stretch & Play Made from quality BPA-free material Sensory Spark "The Chew Necklace is perfect for travelling with your little ones. I love the selection of colors because my daughter have a choice on what to wear. If you are planning a long drive or travelling by air with kids I highly recommend them" - Abigail M. SAVE YOUR CHILD'S SHIRT SLEEVES: This chew stimulation toy will capture your child's attention, thereby saving shirt sleeves. Perfect autistic chew toy or chew toy for kids who like fidgeting. MORE DURABLE: Unlike other similar chewable jewelry, this larger coil allows for not only comfortable wearing, but increased durability.