Chewer: Medium For kids who like to chew on their clothes, fingers, hair….anything really… we have the unique Chewy Charms designed Shirt Savers! Designed to go on a shirt with button holes, they come in a pack of 3. Attach a Shirt Saver to a shirt, and forget about it. You can leave them attached to the shirt even when they go in the wash! The round edges of the beads make it easy for the wearer to work it to the back of the mouth between the molars for maximum vestibular stimulation and the calming effect that it can bring. It is threaded on strong, but soft, cord that is very durable.