Make your big day shine with our Green "It's My Birthday" Circle Glow Shape! Measuring 3" in diameter and featuring a self-adhesive backing, this glow shape can be easily attached to nearly anything, making it perfect for your birthday celebration. To activate, simply locate the ampoule in the center of the badge, gently snap it, and shake to disperse the glow product. Please note that the glow feature is intended for one-time use only. Sold individually, please order in increments of 1 badge and make your birthday unforgettable!