The L2F has a diameter of 0.66 mm, compared to 0.74 mm for the L3F. Its parallel profile maintains the same diameter along the green body. Adjust the volume and weighting of your flies to suit this fine line, especially for micro-nymph rigs. The 2-meter fluorescent yellow section helps you track the tip during the presentation and drift. The line measures 24 meters in total, including the colored section.