Soft, supple and castable - Seaguar InvizX is 100% Fluorocarbon fishing line with superior sensitivity and strength. Specially designed to dominate freshwater, InvisX is virtually invisible to fish. Also delivering advanced hook setting power and exceptional abrasion-resistance, Seaguar IvizX Fluorocarbon Fishing Line - they'll never know what hit them. Line Diameter4lb6lb8lb10lb12lb15lb17lb20lb25lb Inches.007.008.009.010.011.013.015.016.017 Millimeters.17.20.23.26.28.33.37.40.43