Heavyduty Surflon Leaders are made with AFWs Black, nylon coated Surflon 1x7 stainless steel wire and high quality Sleeves, Swivels, and Lock Snaps Leaders are doublecrimped for extra strength and are great for many types of toothy game fish Surflon is also available with Blood Red nylon coating as Bleeding Leaders AFW E030BL183 Surflon Leaders Nylon Coated 1x7 Stainless, Sleeve Swivel, LockSnap, 30 lb 14 kg test, Black, 18 in 457 cm 3 pc.