Momoi Hi-Catch Classic Nylon Mono-Line Leader - Momoi’s Hi-Catch Leader Material is an extremely high quality monofilament line produced using the strictest Japanese quality controls. It exhibits very low memory characteristics, and is flexible while maintaining the highest tensile strength to diameter ratios. Smaller diameter lines with extreme tensile strength result in improved knot performance when fighting hard charging big-game, off-shore, bluewater fish.