Trust me when I tell you that you don't want to know what Harper is chewing on in this picture. It is her prized possession and she spends more time chewing on it than her rope, either of her stuffed monkeys, her blankey, or her lion. If all else fails, we give her this stick to chew on. Unless you are a puppy owner, you do not want to know what this thing is made out of. Trust me.