F-C “SINKING BULWHIPP” FLUOROCARBON TAPERED FURLED LEADER BUTT-SECTIONS are 5-feet long. Add 3-feet of tippet for an 8-foot overall leader system. Designed to turn over BIG flies and poppers for fresh or saltwater. This thing “whips” a popper out there like nothing else can. PIKE FLY FISHERS DELIGHT. Use with 7 to 10-wt rods.