want to have some unique and decorative glow in the dark sand for diy crafts making? If yes, then our product can be used as a for you. Wide application and sufficient quantity can meet your essential demands. Glow in the dark rocks do no harm to people and can to play. Glow in the dark gravel can be used for art and crafting, DIY present decorations. Features -Color:Assorted Color -Material:gravel - Size: 6.50X6.50X1.00cm/2.55X2.55X0.39in -Luminous sand, can be used for DIY decorative bottles, bottles, potted landscape and so on. -With strong or the sun after the observation in a dark place is , repeatedly shining repeatedly bright, slowly decreasing. -Glow-in-the-dark sand of various colors, making their own romantic crafts. -Suitable present choice for friends who love making handcraft, they will like it very much. Package list: 9 × Luminous sands