- Material and safety: Glow in the dark rocks are made of high quality resin, non toxic, tasteless and non radioactive. They are not harmful to humans, fish, plants or the environment. - Safe and pet friendly: Each stone is tumbled and polished to a smooth round shape, will not cause harm to people or pets, so they can be safely used in any decoration or scene. - How it works: The glow rocks absorb and store light, then give off light in darkness, with several hours of bright glow and then gradually dim away. The process repeats for many years. - Wide uses: Glow in the dark pebbles can be used for garden, vase, home furnishing, fish tank, swimming pool, bar decoration etc. - Use scenarios: For outdoor use, place along garden paths or in planters to provide subtle illumination at night. For interior decor, use as vase filler or centerpiece accents in living spaces. For aquatic or wet environments, add to fish tanks, pool edges or bar displays to create a gentle glow after hours.