100m spool of Seaguar Fluorocarbon FXR leader line in size 4 (0.405mm diameter) with 16lb breaking strength. Low-stretch fluorocarbon material with high abrasion resistance and near-invisibility underwater. Designed for clear water presentations and leader applications where low visibility is critical. Diameter remains consistent for reliable knot strength and casting performance.
TARGET USE: Clear water leader material for finesse presentations and abrasive structure fishing