Scarecrow's Werewolf Fangs are comprised of a pair of the Clasic and a pair of the Small Vampire Fangs. They can be worn on uppers, lowers, or both, depending on the look you want to achieve! Each set of teeth comes in its own Crypt Case complete with instructions. All fangs use a specially formulated dental material for the tightest fit. In your kit you will get two doses of the customizing "snap fit" dental chemistry, just in case you need to try it again.