Product Description Color: Light Blue, Grass Green, Multicolor Product Specifications Material: Resin Quantity: 200pcs Diameter: 0.8"-1.2" Thickness: 0 .3" Package: 200pcs Glow in Dark Pebbles Warm Tips: Tones do not glow all night. There is a time limit. It is recommended not to scatter them scattered.< br /> Stones are folded together and the lighting time is extended. These pebbles glow softly and are hardly noticeable in the dark environment. Please keep the pebbles away from children to avoid the risk of suffocation.< br /> Please irradiate stones again if they are not glowing or bright enough. 1. Glow in the Dark Pebbles About 200pcs non-toxic glowing resin pebbles per bag, these pebbles absorb enough sunlight or other artificial light in daytime to glow up to 2-4 hours at night or in any other dark environment Glowstones k can absorb light and shine continuously. 2. Safe and Eco-friendly No battery required! The Luminous Pebbles are made of high quality resin, non-toxic, tasteless and non-radioactive. Which does not harm people, fish, birds and plants. There is no sharp edge with fine workmanship and polish. 3. Sunlight Charge Please spread these glowing stones and make sure the maximum area of each part absorbs and stores energy from the sunlight. 99% of pebbles can glow in the dark at night. 4. DIY Outdoor & Indoor Decoration Decorate a sidewalk, path or driveway, edge a flower bed or fill potted plants with these glowing pebbles. Interesting DIY decoration for vase, fish tank, fish tank, crafts, swimming pool, etc. So we could create a dreamy nighttime environment. 5. Reusable: Remove the packaging and put the pebbles under the sun or light . Make sure each pebble absorbs light. Can be reused.