For optimum precision, the innovative Tuf-Line XP Indicator incorporates a repeating color pattern from yellow to green to red every 10. to gauge length and depth. Simply count the color changes to your preferred length or depth. Highly-visible yellow lets you see length for tracking trolling spreads, green has a low-visibility tie-off point for shallow water and red is the tie-off point for low-visibility in open-water fisheries. If youre running multiple rods, you dont have to remove more than 30 ft. of line to match several rods, decreasing wasted line. Comes in 2,400-yd. spools. Lb. Test Monofilament Equivalent Diameter (lb. test) Dia. (in.) 10 3 0.004 15 4 0.006 20 6 0.008 30 8 0.011 Type: Line.