A party isn’t fun unless you’ve got a Flashing Mouth or two, right™ Make sure you’ve got nice breath since everyone will be right up in your face. This cool retainer-like mouthpiece hides discreetly at the roof of your mouth. Simply slide it in and press the center compartment for a fantastical light show. The mouthpiece fits most mouths and is made of a safe and non-toxic rubber. *Not for children under 10 years old since the mouth piece must not be swallowed or chewed. The colors are awesome led magnificence featuring Red, Blue, Green , and Yellow.