Seaguar Tatsu Fluorocarbon Fishing Line delivers an amazingly strong, yet supple, fluorocarbon line unlike any other through a superior, state-of-the-art double-structure process. It fuses two custom, 100% fluorocarbon resins, creating the world's only double-structure main line. Fill your spool with Tatsu and fish fierce.FeaturesExtraordinary knot strength and castability100% fluorocarbonAmazingly strong, yet supple