[Glow in the dark] These garden pebbles will be charged by sunlight or other artificial light. After absorbing enough energy during the day, they will automatically glow in the dark for 4-6 hours.[High-quality material] Made of weather-resistant and durable resin, these luminous gems are very suitable for outdoor use, and usually work in any weather conditions. It can absorb and emit light repeatedly.[Safety and environmental protection] Non-toxic, no odor, no radiation, smooth and rounded surface, harmless to the human body and the environment. No electricity and wires are needed, saving more energy and money.[Indoor and outdoor decoration] Very suitable for landscape and landscape decoration; decorate your aquariums, fish tanks, flower pots, swimming pools, flower beds, crafts, vases; illuminate your gardens, paths, driveways, walkways, etc.[Satisfactory Service] The set includes 100 luminous pebbles. If you have any questions about the quality, please contact us, we will make you satisfied.