Pline Fluorocarbon 250yd Spool. Available Sizes: 8lb, 10lb, 12lb, 15lb, 20lb. P-Line’s castable 100% Soft Fluorocarbon is extruded from the highest quality Japanese Fluorocarbon Crystals. With a reflective index very close to that of water, FLUOROCARBON is near invisible in the water, ensuring more strikes. It’s been extruded to have very little memory in comparison with other Fluorocarbon lines.