Let your Mouth give a light show of its own with these Glow Mouth Pieces. They fit into most mouths since they are made of a stretchable plastic. First, you crack a mini-Glow stick and then place it into the Mouth Piece. Now you can place it in your mouth just as you would a Mouth guard. Each package comes with two mini-Glow sticks so you'll get two nights of Mouth illumination. Since these do contain small parts, please heed the Choking Hazard and keep away from children under 3.