Luminous beads pack 7-8mm 5000pcs 10000pcs uv beads glow in the dark beads Children's educational play toys

GLOW IN THE DARK: The luminous gel beads will glow in the dark. Placing them under indoor lighting or other light sources for a period of time, the luminous gel beads will be brighter. The longer they are exposed to light, the longer they glow. EASY TO USE & STOR: Soak the gel ball into the water for 3-5 hours, keeping the water enough during this time, the splatter ball will expand to 7-8 mm. It's the perfect refill gel balls and convenient to carry outdoor for shooting games. To store gel ball hermetically which is unsoaked. For the soaked water ball beads, store them in an airtight container or bottle with some water, away from the elements and direct sunlight, the water ball bead will last up to 3 months.