Specifications: Easy to use, just put the pebbles on the edge of the walkway or flower beds, or use it for decorative vases, aquarium landscaping, gardening, swimming pool, bar, villa gardening potting, parks and so on. After absorbing sunshine during the day, the stones can glow up to three hours of blue or green light at night. Make your garden more beautiful. It can be used repeatedly. Non-toxic and tasteless, non-radioactive, environmentally friendly resin, non-mineral. Item Name: Luminous Stone Material: Resin Quantity: 50Pcs/Set Features: Durable, Easy to Use, Portable, Useful Notes: Due to manual count, there may be slight difference of 1-2 pieces in the quantity. Hope you can understand, thank you. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Package Includes: 50 x Luminous Stone