An amazing power that Мў‰вВЃТcomes to lightМў‰вВеќ when the lights go out.This yellow-green substance isn’t just any powder, but a very special powder. Take a close look at it. Can you find the mysterious secret? Turn the lights off and watch as the powder gives off an eery glow! It’s Glow Powder and it uses the property of phosphorescence to glow in the dark after being exposed to light. Try making glowing blobs, glow-in-the-dark arts and crafts, and much more with this amazing powder. You can even use the included black light to make fun designs! 227g jars.