With a 1.25 inch-per-second sink rate, the Frequency Intermediate is an effective line for fishing flies just under the surface. It's ideal for use with streamers and wet flies in both stillwater and stream environments. The thin overall diameter cuts through the wind on the casts, while the mid-length head enhances control and castability. Head length 40.0', overall length 82.0' - 90.0', front end loop. Color: atmosphere blue.