When you receive the parcel please kindly put all the pebbles in the sun or under a lamp for about half an hour to make them charge fully for the first time use, then you can in the dark, they will glow brightly. They will last the glowing for about 2 -3 hours in the fully dark space. They can charge and glow repeatedly. If you want them to glow all the time in the dark indoor or outdoor please install a UV light above them.
They glow Blue Green color in the dark and they are Milk Yellow Color in the day light.
They can be used to decorate the home and garden flower pots, to mark paths and walk way or as a border for plant beds or ponds.They can be applied to pool, bar, vase decors, fish tank and Aquarium;
It includes 40pcs (about 300g) in one color bag. It's a good option for a gift.
They look like natural onyx, they are non-toxic, non-radioactive and completely harmless to aquatic life.
Color Name:Blue Green
1) Material: Silicate with luminious pigment;
2) Size of the pebbles: about 3x3cm;
3) Packing: with one color mesh bag;
4) Package includes: 40 pcs (about 300g);
5) Remind: please expose the item to the sun or artificial light to charge, so that they can glow in the dark better.
6)Warning: they are not toys, keep away from children for chocking hazard!
Glow in the Dark Stones Decorative Garden Eden Pebbles Glow Stones Glow Gravel Glow Rocks for Fish Tank Aquarium Ourdoor Walkway Backyard Decoration (40pcs Briolette 2.5-3cm Blue Green) - B07BT737BD