Loon Line SpeedPositively the best line cleaner, conditioner, and UV block for fly lines. By cleaning, adding a slickness, filling in imperfections and protecting lines from the sun, Line Speed allows lines to cast farther and last longer. Unlike most line cleaners, Line Speed doesn’t leave a sticky, dirt gathering silicone fluid coating. Apply with Loon’s Line Cleaning Tool and let sit overnight.HGow to use:Apply desired amount to Line Cleaning Tool. Use Line Cleaning tool to apply to entire fly line. Let fly line sit overnight. Buff line with cloth to remove excess Line Speed.