Safe and Eco-Friendly: Made of high quality resin, eco-friendly, no radioactivity and non-toxic. Processed and polished so there are no sharp edges. Glow in the Dark: About 200pcs non-toxic glow in the dark resin pebbles per bag. These pebbles absorb enough sunlight or other artificial light during the day to glow for up to 3-6 hours at night. Ideal Decoration: Pebble light from the dark is the best night decoration. The pebbles glow in the dark mesmerizingly and become even more radiant together, a special decoration to attract the attention of passersby. Easy to Use: Irradiate them in the sun or under a bright light for 2 or 3 hours. And then they will glow in the dark automatically. If you shine stronger light on them for a longer time, they will glow brighter and last longer. Widely used: Indoor and outdoor pebble decoration, perfect for decorating gardens, walkways, flower beds, flowers, decorative vases, fish tanks, aquarium arrangements, waterscapes, swimming pool arrangements,