Material: Made of high quality resin, non-toxic and odorless, no radioactive substances. Fluorescent glow effect. The fine workmanship offers you a smooth surface without sharp edges.^ Environmentally friendly and energy-saving: no electricity required, economical and energy-saving. Absorbs and stores energy from sunlight or other light sources to glow in dark environments.^ GLOW IN THE DARK DECOR These decorative garden stones that glow in the dark after exposure to daylight, ideal for aquarium pebbles, shimmering stones in the fish tank, pond, yard, landscape decoration, lighting a path or driveway.^ Reusable: Remove the packaging and put the pebbles under the sun or light, make sure each pebble absorbs light. Can be reused.^ IDEAL OF DECORATION: Ideal for craft lovers and as an eco-friendly bright decoration. Are suitable for decorative vases, fish tanks, fish tank landscaping, garden decoration, swimming pool decoration.^