This fishing line bundle pairs 50 meters of Trout Magnet Phantom 100% fluorocarbon leader with 350 yards of Leland's Lures Trout Magnet fishing line. The Trout Magnet Phantom leader is designed to be nearly invisible underwater so fish can't see it. This allows anglers to get more bites when drifting lures in clear water. Meanwhile, the Trout Magnet S.O.S. line offers a smooth, durable, and strong copolymer fishing line that resists abrasions and has great knot strength. With 2lb, 3lb and 4lb test options, the Phantom leader integrates seamlessly with the 2lb test Trout Magnet line. Together these high performance lines allow anglers to cast further and play hard fighting fish without concern over line visibility or strength. Both lines offer stealth and strength for finesse fishing trout magnet lures in streams, lakes or rivers.