Oubest Glow in The Dark Rocks Glow Pebbles Decor for Garden/Fish Tank/Aquarium/Walkway/Driveway/Plant Pots/Bonsai (100…
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NON-RADIOACTIVE & NON-TOXIC: Made of long-afterglow luminous powder, polystyrene resin, which are non-toxic and do not contain any radioactive elements.
HOW IT WORKS: Glow stones absorb and store light and then when in darkness they give off light, with 2-3 hours of bright glow and then gradually dim away. They can repeat this process for 15 years.