Glow-in-the-dark- Jelly BeadZ Water Bead Gel 1 10 Gm Pack - GREEN ONE 10 gram pack of Green glow in the dark , Non toxic, biodegradable, enviromentally friendly expose to bright light for 20-30 minutes, will glow for hours Many uses for fun or decorations, parties, Halloween perfect for centerpieces, any design at night for added drama Hydrate in water for 8 hours for marble size JellyBeadZ