Surfl on 1x7 is a great all-around leader wire for toothy fi sh. This wire is our Surfstrand 1x7 stainless steel with a smooth coating of nylon. A specially selected grade of nylon, tough yet fl exible, is used to seal out water, reduce visibility, and improve the life of the line. Compared to our competitor�s old style 1x3 construction, Surfl on�s 1x7 construction offers higher break strength and more realistic action. Surfl on 1x7 is an effective leader wire for hard-charging, toothy fi sh such as Bluefi sh and Mackerel.