Each bag contains 200 non-toxic blue or colored pebbles. Brighten up your home and garden. Luminous stones made of premium resin, non-toxic and odorless, no radioactive substances. Fluorescent effect. Fine workmanship gives you a smooth surface without sharp edges. Eco-friendly and energy efficient, no power or battery needed. Remove the package and place the pebbles under the sun or light, make sure each pebble absorbs light. The phosphorescent stones have need enough sunlight to absorb ultraviolet light before it can glow in the dark. Ideal for decoration, ideal for DIY enthusiasts and environmentally friendly light decoration. Suitable for water features, landscape decorations, potted plants, flower beds, lighting paths or driveways, gardens, crafts, aquariums, etc. We offer 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 you 100% after-sales service.