🎣FTK 300/500m Invisible Fishing Line Fluorocarbon Strong Sink Line 4.13-34.32LB. ✔️ 1x FTK 300m or 500m Invisible Fishing Line (depending on selection). TheFTK 300/500m Invisible Fishing Line 🎣 is engineered for bothprofessional anglers and passionate fishing enthusiasts 🌊🐟.