All “glow-in-the-dark” products contain
phosphors and have to be “charged” in order to attain a good glow. A
phosphor is a substance that radiates visible light after being
energized. After being exposed to light, most items will glow for at
least 10 minutes. You may need to be in nearly complete darkness to
notice it. The brighter the light and the longer the exposure, the
better and longer the item will glow.
Images are representative of selection. Each marble is a unique glass orb. No two marbles are exactly alike.
Please be aware that marbles are very difficult to photograph and due to differences in personal settings on computers and hand held devices the colors you see may vary slightly from the color you receive. Lighting such as flash photography can greatly effect the look of a marble as can holding the marble under different types of lighting can make the color look slightly different. We do our absolute best to represent our marbles accurately and true to color, but even the best photography will not display as 100% perfect. The white spots on these marbles are light reflections, not damage or error spots.