Manufactured with SEAGUAR's exclusive double structure technology, GRAND MAX lines are sensitive and soft. The double structure technology offers two different resins processed appropriately to react as one body to provide these characteristics to the line. This 100% fluorocarbon line is even more invisible in the sea and visually invisible to the fish. It is also resistant to UV radiation and the harsh conditions of the sea. A specially designed 100% invisible fishing line for use in the sea.