Each bag contains 200 non-toxic blue or colored pebbles. Light up your home and garden. Premium quality resin light stones, non-toxic and odorless, free of radioactive substances. Neon effect. Fine workmanship gives you a smooth surface with no sharp edges. Eco-friendly and energy efficient, no power or battery required. Remove the package and place the pebbles under the sun or light, make sure each pebble absorbs light. Glow in the dark stones need enough sunlight to absorb ultraviolet light before they can glow in the dark. Ideal for decoration, ideal for DIYers and eco-friendly light decorations. Suitable for water features, landscape decorations, potted plants, flower beds, pathways or pathway lights, gardens, crafts, aquariums, etc. We offer a fast delivery, top quality products and the best customer service for every customer. If you have any doubts, do not hesitate to contact us. We offer 100% after-sales service.