Saiko Pro leader line is a 100% custom formula fluorocarbon fishing line made in Japan for optimum leader performance. Featuring a supple yet hard finish that provides supreme abrasion resistance, Saiko Pro fluro leader is stronger after abrasion than leading competitors. The knot and crimped strength of AFTCO's leader is unmatched and the line will generate bites from finicky tuna, billfish and inshore species when the other brands get refused! For more on Fluorocarbon check out why use fluorocarbon fishing line + it’s benefits or our guide to 4 essential fishing knots.