Seaguars lowvisibility Fluorocarbon Leader has a refractive index much lower than that of monofilament making it nearly invisible Offering superior abrasion resistance and knot strength this hightech 100 fluorocarbon leader sinks faster in water than other lines due to its higher specific gravity Unmatched presentations and designed to hold up in the harshest saltwater environments Color Clear 25 yard spoolLowvisibilitySuperior abrasion resistance and knot strengthFast sinkingDurable enough for use in harsh saltwater environments