Surflon 1x7 is a great all-around leader wire for toothy fish. This wire is our Surfstrand 1x7 stainless steel with a smooth coating of nylon. A specially selected grade of nylon, tough yet flexible, is used to seal out water, reduce visibility, and improve the life of the line. Compared to old style 1x3 construction, Surflon&';s 1x7 construction offers higher break strength and more realistic action. Surflon 1x7 is an effective leader wire for hard-charging, toothy fish such as Bluefish, Muskie and MackerelD010-0 Lbs Test: 10 .012" diameter Use AFW Sleeve number 1 or 1L D040-0 Lbs Test: 40 .024" diameter Use AFW Sleeve number 3 D060-0 Lbs Test: 60 .032" diameter Use AFW Sleeve number 4 or 4L D090-0 Lbs Test: 90 .048" diameter Use AFW Sleeve number 7 D135-0 Lbs Test: 135 .041" diameter Use AFW Sleeve number 9 D170-0 Lbs Test: 170 .065" diameter Use AFW Sleeve number 12