the smaller sizes are suitable for use as fillers. for filling garden paths, vases, potted plants, fish tank gaps, or creating glow-in-the-dark sand art bottles and micro decoration. Open the packaging bag before using in the dark sand, spread sand evenly and expose it to sunlight, strong light or so that each glow sand can fully absorb energy. It will a fantastic light in a dark environment. Glow in the dark gravel can absorb and store the energy of light source (sunlight, strong light, or other light sources) and bright . The darker the surrounding and the more exposure to visible light, the more bright glow can be seen. Glow rocks for landscaping can continue to glow for several hours when it absorbs enough energy, and will slowly dim as time goes by until it stops glowing. Reusable to brighten your yard for decades. In fact, it also glows during the day and consumes energy continuously. This is one of the reasons why it replenishes energy during the day but does not glow at night. Mini glow sand is suitable for yards, gardens, pathways, fish tanks, vases, potted and creating glow in the dark sand art bottles and micro decoration. Material: Color: as the picture shows Glow in The Dark Pebbles for Aquarium Large River Stones for Garden Small Home Kits to Build to Live in Glow in The Dark Pebbles Outdoor 500 Double for for Humans Stones Walking Large Decorative Rocks for Outdoor Concrete Bowls Decorative Stepping Stone Cement Mix Glow in The Dark Decorations Mulch for Landscaping Mini glow sand is suitable for yards, gardens, pathways, fish tanks, vases, potted and creating glow in the dark sand art bottles and micro decoration. Mailbox with Planter for outside Glass Stones for Garden Little Wagon for Kids Rare Christmas Blow Molds Stones for Dad Stones with Sayings Planter Outdoor Extra Large Landscaping Glass Chunks Pebbles for Indoor Cement Molds for Concrete Bath Open the packaging bag before using in the dark sand, spread sand evenly and expose it to sunlight, strong light or so that each glow sand can fully absorb energy. It will a fantastic light in a dark environment. Portable Flower Bed Landscaping Stones Small Stones for Landscaping Aquarium Garden Outdoor Decorations Decorations Garden Glow in The Dark Aquarium Gravel Concrete Stepping Stones Garden Stepping Stones Molds Outdoor Hot Tub Decorations for Material: Extra Large Stones for Landscaping Amber Decorative Rocks Pretty Rocks And Stones Garden Pagoda Decorative Wheelbarrow for Garden Glow in The Dark Outdoor Rocks Yard Ideas Garden Stone Decorating Glow in The Dark Garden Decorations in The Dark Terrarium Glow rocks for landscaping can continue to glow for several hours when it absorbs enough energy, and will slowly dim as time goes by until it stops glowing. Reusable to brighten your yard for decades. In fact, it also glows during the day and consumes energy continuously. This is one of the reasons why it replenishes energy during the day but does not glow at night. Glowing Glow Stones for Concrete Stone Decorative Concrete Lamp Rocks Glass Concrete Bowl Molds And Forms Small Decorative Planter Rocks Gravel Glow Glow in The Dark Necklace Pendant Glow in The Dark Stones 1000 Large And Planter Outdoor Color: as the picture shows Concrete Vase Molds And Forms Concrete Mix for Stepping Stones Aquarium Glow Gravel Outdoor Rocks Glow River Rocks for Garden in The Dark Aquarium Rocks Rubber Paving Stones Artificial Rocks for Outdoors Pocket Stones with Words Glow in Dark Stones