Gouken Line comes in 150m and NEW 600m spools at an affordable price for a high-performance line. Strength rating options include 10, 12, 15, 16 and 20 pounds. The range of poundage makes it possible to target a wide variety of species with the toughest Fluorocarbon line on the market. The small diameter makes for exceptional sensitivity. Although the diameter is small, the line delivers tough-as-nails abrasion resistance for anglers fishing over rocks, logs and weeds.