Material: Made of high quality resin, non-toxic and odorless, free of radioactive substances, fluorescent effect. The neat finish gives you a smooth surface with no sharp edges. Environmentally friendly and energy saving: no electricity required, economical and energy saving. Absorbs and stores energy from the sun or other light sources to glow in a dark environment. Glow-in-the-Dark Decoration: These garden decorative stones that glow in the dark after being exposed to daylight, ideal as aquarium gravel, sparkling stones in aquarium, pond, yard, as landscape decoration, as lighting for a path or a path. Reusable: Remove the packaging and place the pebbles under the sun or light, make sure each pebble absorbs light. Can be reused. Ideal decoration: Ideal for craft enthusiasts and as an ecological and bright decoration. Can be used for decorative vases, aquariums, aquarium landscaping, garden decoration, swimming pool decoration. Note: 1. Before using for the first time, expose