The Seaguar (TM) Blue Label Saltwater Fluorocarbon Leader uses exclusive Double Structure Technology to make it one of the most durable and resilient leaders out there. This advanced tech improves overall impact and knot strength and abrasion resistance, and it lets you use a smaller pound test compared to other fluorocarbon leaders. The material gives it low visibility in the water and protects it against harmful cold, chemicals, and sun. FEATURES: Double Structure Technology enhances impact and knot strength Made with 100% Seaguar (TM) resins Non-absorbent, high-density fluorocarbon material resists cold conditions UV and chemical resistat SPECS: Model: 02 FC 25 Pound Test: 2 Length: 25 yds. Diameter: 0.005 in. Model: 04 FC 25 Pound Test: 4 Length: 25 yds. Diameter: 0.006 in. Model: 06 FC 25 Pound Test: 6 Length: 25 yds. Diameter: 0.007 in. Model: 08 FC 25 Pound Test: 8 Length: 25 yds. Diameter: 0.008 in. Model: 10 FC 25 Pound Test: 10 Length: 25 yds. Diameter: 0.009 in. Model: 12 FC 25 Pound Test: 12 Length: 25 yds. Diameter: 0.011 in. Model: 15 FC 25 Pound Test: 15 Length: 25 yds. Diameter: 0.013 in. Model: 20 FC 25 Pound Test: 20 Length: 25 yds. Diameter: 0.016 in. Model: 25 FC 25 Pound Test: 25 Length: 25 yds. Diameter: 0.017 in. Model: 30 FC 25 Pound Test: 30 Length: 25 yds. Diameter: 0.020 in. Model: 40 FC 25 Pound Test: 40 Length: 25 yds. Diameter: 0.024 in. Model: 50 FC 25 Pound Test: 50 Length: 25 yds. Diameter: 0.028 in. Model: 60 FC 25 Pound Test: 60 Length: 25 yds. Diameter: 0.029 in. Model: 80 FC 25 Pound Test: 80 Length: 25 yds. Diameter: 0.032 in.