Material: Made of high quality resin, non-toxic and odorless, without radioactive substances, fluorescent effect. The neat finish offers a smooth surface without bright edges. Eco-friendly and energy saving: No electricity required, economic and energy saving. Absorbs and stores the energy of the sun or other light sources to shine in a dark environment. Shiny decoration in the dark: These decorative garden stones shine in the dark after being exposed to The light of day, ideal as aquarium gravel, glittering stones in the aquarium, pond, court, as a landscape decoration, as a lighting of a path or an alley. reusable. : Remove the package and place the pebbles under the sun or light, make sure each roller absorbs the light. Can be reused. Ideal decoration: Ideal for craft lovers and as ecological and bright decoration. Can be used for decorative vases, aquariums, aquarium landscaping, garden decoration, swimming pool decoration. Note: 1. Before using it for the first time, expose the