Made in Sweden, Kinetic Sand is 98% pure sand with what its manufacturer describes as “patented technology hidden within the binder.” That technology allows the sand to move as if breathing and to stick only to itself. Allergen, dust, and gluten-free, antimicrobial Kinetic Sand does not stain, never dries out, and cleans up easily. Designed to support cognitive, fine motor, and sensory development. Store in a sealed container. If Kinetic Sand gets wet, air dry to restore original texture. Five-pound box includes 2.5 pounds each of red and purple. Kinetic Sand also available in green and blue as well as 5.5 pound Natural. Mini Castle Molds and Laptop Tray also available.