Aftco Saiko Pro Fluorocarbon Leader Line 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! FEATURES 100% custom formula fluorocarbon made in Japan for optimum leader performance. Made for game fish, not lab testing-up to 20% stronger after abrasion than leading competitors. Industry leading tensile strength, abrasion resistance and break energy ratings for an unfair advantage over the competition. AFTCO SecureSpool(TM) makes leader storage a cinch. No more messy, uncoiled and disorganized leader spools. CUSTOM FORMULA SECURE SPOOL LB. TEST DIAMETER 12 .011 in .281 mm 15 .013 in .330 mm 20 .017 in .433 mm 25 .019 in .473 mm 30 .022 in .565 mm 40 .024 in .620 mm 50 .026 in .660 mm 60 .030 in .770 mm 80 .032 in .810 mm 100 .042 in 1.068 mm 130 .046 in 1.175 mm 150 .050 in 1.281 mm 200 .057 in 1.445 mm 220 .066 in 1.677 mm 300 .072 in 1.828 mm