After researching many different fluorocarbon lines, Cabelas formulated a special No-Vis 100% fluorocarbon Fishing Fine to give you all the characteristics you asked for. Not only is it virtually invisible under water, (only 100% Fluorocarbon comes close to matching the light refraction index of water), but its abrasion resistance, knot strength and tensile strength far exceeded our expectations. The extra-soft properties and minimal stretch make No-Vis the most castable 100% fluorocarbon line on the market. Compare to other fluorocarbons and you will be amazed at how well our line fishes. Available: 4, 6, 8-lb. test. 200 yds.10, 12, 15, 20-lb. test. 150 yds. LB. Test Dia. (in.) 4 0.0007 6 0.010 8 0.011 10 0.0122 12 0.013 15 Type: Line.