No Electricity Required Glowing Rocks – These luminous pebbles glow stones absorb sunlight during the day and light up at night, and they will glows for up to 2-3 hours after normal daylight exposure. These glow stones are White in the day, but they are going to be Blue glow pebble rocks at night! | Perfect Glow in the Dark Decorations– Line a walkway, edge a flower bed or fill a planter with these glowing pebble stones that will glow on the dark after being exposed to daylight. These dark pebbles stones are Ideal for fish tanks rocks pebbles gravel, aquarium gravel & glow decor, ponds, yard, waterscapes, landscape decoration, potted plants, lighting a pathway or driveway, garden glowing stones, crafts, etc. | Some People Don’t Know How to Deal with the Used Outdoor Glow Rocks – No worries, just let the night stones be, the glowing pebbles for garden can absorb light and glow repeatedly and you can use them for up to 15 years. Perfect for DIY lover and let the night glow pebbles ECO | A Suitable Amount for Outdoor Glow Pebble Stones – glow in the dark stones 300 pieces at an affordable price, Be a genius of making glow in the dark items, Color: White (Don’t glow up) & Blue (Glowing), Size:0.8"-1.2"/ 2-3cm/ Pc | How to make them glow? Put them under sunlight to charge for at least an hour. They glow longer if you charge longer. Made from Polystyrene (PS), non-toxic & tasteless, non-radioactive, Recommended for Ages 3+, Adult supervision required. Buy from the source, SLOMG Direct is the only legal seller of Slomg luminous garden rocks & light / bright pebbles, Money Back guaranteed.