QTTLLI 20Pcs Large Glow Pebbles Glow in The Dark Decorative Stones Rocks for Garden Path Walkway Yard Fish Tank, 1.7",Mixed Color

• Note 1 : Better use combain light souce to "charge", then they will glow in the dark.
• Note 2 : Daylight souce cannot make sure they will glow in the night, because energy will release out during the early evening.
• Note 3 : It need "re-charge" by other light souce if you want them glowing in the evening.
• Note 4 : White Green Blue Yellow colors glows well, Red Pink Purple Brown colors not glows well like others.
• Please do not STACK these pebbles when charging, open the package and put them in flat. If the glowing becomes dim, charge again.

Frequently Questions and Answers 1. Q: Why my pebbles do NOT glow in the dark? A: The express package has blocked the sunlight source, you should take them out of the package, just shine in the sun or light for 5-10 minutes, then you can see it's glowing in the dark. When you receive your package, you can test them first. 2. Q: Why my pebbles reflects very dim glow? A: Please make sure they all got "charged", put them in flat, do not stacked them. That's the reason some of the do not glow or glow a very dim light. 3. Q: Well, I already "charge" the Pebbles under the strong sunlight for over 6 hours, 2 days, 4 days...Why these still do Not glow? A: The principle of the glow stones is to absorb light, then glowing. Re-absorb light, then glowing again. They keep glowing when storaging the light source. The storaged source may had released during the sunset time. And if there is no light source absorbed at night, the pebbles may reflect bad performance. Please don't worry, just turn on the light or the flashlight to "charge" them in a few minutes, then you will see its glowing.