Light Up Flashing Mouthpieces (Flashing Teeth) come in clear, soft plastic. Each deluxe flashing mouth brightly flashes multicolor lights. Light Up Flashing Mouthpieces (Flashing Teeth) are novelty products only and are not for babies. Light up teeth products are for older kids, teenagers and adults who want to be seen. NOTE: This item is made from FDA approved plastic. Item Dimensions: Height: 1.1 in. Width: 2.5 in. LED Colors: Blue, Green, Red, Yellow Batteries: Batteries are NOT replaceable.