Potomac Banks 100pcs 3D Stars Glow in The Dark Luminous Fluorescent Plastic Wall Stickers (Comes with Free How to Live Stress Free Ebook) They absorb light and glow in the dark; Comes with Free How to Live Stress Free Ebook Ideal for applying on doors, lamps, household articles, bedroom ceilings and any smooth, clean surface Approximately the size of a quarter Bring the night sky inside