TUBAN kinetic sand is a creative fun for children of all ages that will engage them for many hours to play! Kinetic sand is a unique substance that flows through your fingers while leaving your hands dry! Kinetic sand never dries out or hardens. Children can build a sand castle at home, just like on the beach! Dynamic sand is easy to shape and knead. You can easily create a build new structures and various shapes. Avoid contact with water in order to maintain the properties of the product. Do not use sand in a location with high humidity level. If the sand comes in touch with water, beverages or other moist materials, immediately discard that portion of sand, which was contaminated, otherwise it may destroy the entire product. After longer play, sand may stick to hands; in such a case wash and dry your hands thoroughly.