Material - Photoluminescent pigment + resin. Irregular diamond glow in the dark rocks about 0.4 inch long. 600PCS per pack.
How does these glow in the dark rocks work - Glow stones absorb and store light in day and glow in dark for 2-3 hours then gradually dim away. They can repeat this process for up to 15 years.
Safe and Durable - Abnaok glow in the dark stones are made of natural resin, non-toxic, non- radioactive and odorless, no sharp edges, will not harm your kids, fishes and dogs.
Make your garden unique and cool - Use these decorative rocks to line a walkway, edge a flower bed or draw some symbols or images indoor and outdoor, your yard will be more interesting and memorable.
Warm tips - Do not stack the glow rocks on top of each other but pave them out flat on the walkway for full exposure to light.For better glow effect in night, we advice to drop the glowing rocks near light source, such as street lamp.