Saiko Pro is a 100% custom formula fluorocarbon made in Japan for optimum leader performance. Featuring a supple yet hard finish that provides supreme abrasion resistance, Saiko Pro is stronger after abrasion than leading competitors. 12 to 80-lb test is available in both Clear and Pink. 100 to 300-lb test is available in Clear. 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!