Seaguar Invizx Fluorocarbon Line is at the top of it&';s class. We love this line for many reasons but the most impressive thing is how limp and strong it is. The limpness is great when using Seaguar Invizx on spinning reels. This reduces memory allowing you to cast further without the curly-que effect. Lots of fluorocarbon lines lose strength when they improve limpness, but Seaguar was able to keep this line strong and sensitive. It&';s as sensitive as your girlfriend in high school but as strong as your Russian masseuse. As with all Seaguar fluorocarbon lines, it&';s diameter is very thin. Invizx is no exception and it still remains one of our top selling lines. These spools are 200 yards of pure fish catching line. Test (lb) Diameter (mm) Diameter (in) 6 0.235 0.009 8 0.265 0.010 10 0.285 0.011 12 0.310 0.012 14 0.330 0.013 16 0.355 0.014 20 0.405 0.016 25 0.470 0.019