IMPROVED! ORVIS "MIRAGE" PURE FLUOROCARBON TIPPET MATERIAL - Incredible abrasion resistance. Excellent knot strength. The refractory index allows MIRAGE Fluorocarbon to absorb light rather than reflect it. MIRAGE will sink just under the surface and disappear when dry fly fishing. SIZES: 7X(2-lb), 6X(3-lb), 5X(4.1-lb), 4X(5.5-lb), 3X(7.1-lb), 2X(8.7-lb), 1X(10.7-lb), 0X(13.2-lb). 30-m spl