For everyday use in fresh or salt water, there?s Grand Slam Leader, the leader that?s at-home bottom fishing as it is trolling for tuna. An advanced monofilament extruded with properties that make it supple, yet extra tough - Grand Slam Leader performs! Unsurpassed for tying rigs for everything from flounder fishing to deep dropping for monster grouper. Grand Slam Leader can be used as leader material for offshore trolling as well.