Yo Zuri Duel Powerleader Fluorocarbon Nylon Blend 50m 40lb 0.52mm H3331Yo Zuri Duel Powerleader combines fluorocarbon and nylon for a leader material that balances abrasion resistance and knot strength. 40lb breaking strength with 0. 52mm diameter. Low visibility underwater, good for clear water presentations. 50m spool length. Use for tying shock leaders or dropper loops when targeting toothy species or fishing around structure. TARGET USE: Shock leaders and dropper loops for clear water or toothy species