Glow in the Dark Rocks:Want a soft green glow in the night while a cute creative decoration during the daytime? Then Namtso glow rocks in the dark pebbles is for you, It looks like a pretty decoration in light but glows like a gem when the lights turn off.Wide Range Use:You can use it for a couple of things like Lighting the pathway, driveway, walkway, or decoration for vases, aquarium, flower pot. Its ideal for gardens, lawns, yards, etc.How to Use:To get these stones glowing, you must first charge them under Sunlight or other lights. When exposed to light, these stones get charged and later emit it slowly 3-5 hours. Glowing rocks need to be spread out when charging to make sure the glow stones get maximum light exposure.Product Information &Warning Tips:You'll get 200pcs blue glow pebbles. Each pebble is roughly 1*inch in diameter. They are made from Photoluminescent Pigment and Resin material that is an environmentally friendly and non-mineral product. So, its safe to use, but keep them away from the kids as they might swallow it thinking of candies, and that can be hazardous.