Brighten up your birthday party and add an element of fun with the Green Happy Birthday Circle Glow Shape! This happy birthday glow shape is a great way to light up any birthday event! Each circle shaped Green Happy Birthday glow shape measures approximately 3 inches in diameter and has a self-adhesive backing that allows it to be attached to almost any surface. Ideal as part of your party decor or when you want to decorate a friend's house for her big day, these Green happy birthday circle glow shapes are sure to be a hit with crowds of any age! To activate your Green Happy Birthday Circle Glow Shape simply locate the ampoule in the center, press firmly until it snaps, then shake to disperse the glow product. Please note the glow feature in the Green Happy Birthday Circle Glow Shape is intended for one-time use only. The happy birthday glow shapes are sold by the piece.