Umpqua's Phantom X Fluorocarbon Tippet - Simply put, Umpqua's Phantom X is the strongest and most invisible fluorocarbon tippet on the market. And with very little stretch, Phantom X allows you to detect the most subtle takes. A unique chemical process of combining Fluorocarbon (FC) monomers into polymer chains results in abrasion resistance, sensitivity, density, invisibility and strength never seen before in FC tippet. 30 Yard Spool. Features Include: Strongest and most invisible fluorocarbon tippet on the market Very little stretch allows the detection of the most subtle takes Unique chemical process of combining Fluorocarbon (FC) monomers into polymer chains Abrasion resistance Extreme sensitivity High density Invisible to fish Extreme strength Size LB Test Diameter 0X 16LB .011 1X 13LB .010 2X 11LB .009 3X 9LB .008 4X 7.2LB .007 5X 5.5LB .006 6X 4LB .005 7X 3LB .004