No! These are brand new, not even opened. It includes the thermal plastic you put it in boiling hot water until it turns clear, and then push it forward and up onto your teeth to create a tray that is molded to you, and you can fix the mold (remelt) as many times as you need to to make it fit for you! I’ll even throw in some extra thermal beads just in case:)( they are like what you use to put Halloween fangs on with)