INSPIRELLE 700pcs UV Reactive Plastic Pony Beads - Glow in The Dark Luminous Beads for Jewelry Making (8x6mm) - Perfect for DIY Bracelets, Necklaces & Kids Crafts Under Black Light

These are fun and change color right away in the sunBeads change colors in the sunlight within seconds! Very happy with the pinks and purple colors. Blue, orange and yellow are light but any UV are normally light anyway but those colors glow in the dark. Come in presorted bags with stickers to show colors! Very happy with purchase!We used these for a science fair project. We placed them in separate bags with sunscreen applied to show how effective different sunscreens are. It was a winning project! It was a great tool!My niece screamed with delight when she opened these as a gift.Super fast shipping and affordable. Great for a science project my daughter.Does not work colors only show in sun light. Other than that no color at allThe blue color doesn't show up so I basically use them as my compare beads. But love these!I have used these for a few days now in braids in my hair they are very bright when I’m sunlight and glow very bright at night!Just not as bright illumination as one would have thought.