Featuring bright white LED's that will illuminate the earrings and project light all around you. Earrings are lightweight and come with fish hooks for comfortability and easy removal.To activate your Light Up Groovy Disco Mirror Ball Earrings , remove pull tab and press the button located at the top for a light pulsing function. Specifications LED Colors: White Light Mode: Pulsing function Batteries: (3) AG3, Replaceable Dimension: 4.5" Circumference