Scientific Anglers Freshwater Tippet with Cutter 30-meters, 7X Diameter: [1X] 0.01 in, [2X] 0.009 in, [3X] 0.008 in, [4X] 0.007 in, [5X] 0.006 in, [6X] 0.005 in, [7X] 0.004 in Overall Length: 32.8 yards Test: [1X] 12.8 lb, [2X] 10.5 lb, [3X] 8.8 lb, [4X] 6.8 lb, [5X] 4.8 lb, [6X] 3.7 lb, [7X] 2.7 lb Material: nylon Recommended Use: freshwater fly fishing