?High quality? - Made from rarely produced high quality luminous powder with long heating time and polystyrene resin non-mineral products. Precise workmanship ensures a smooth surface with no sharp edges ?Long-lasting light? - Requires no electricity and long life in low sunlight. These luminous garden stones absorb sunlight during the day and glow at night, and glow for up to 2-8 hours in normal daylight ?Multiple Colors? - Bright colors. Each pack of stones will give you a celebration of colorful light in the dark and give your garden a wonderful atmosphere ?Reusable? - Remove the packaging and place the pebbles in the sun for a few hours. Make sure each individual light absorbs, glows in the dark and has a lifespan of more than 15 years ?Wide application? - This gravel aquarium is perfect for fish tanks, gravel fish tanks, ponds, yards, landscaping decorations, potted plants, road or pathway lighting, garden gravel, arts and handicrafts, etc. Product Description Specification: