The Berkley Nanofil Uni-Filament Line, 150 Yard Filler Spool makes casting effortless. This extremely accurate fishing line is one of the thinnest lines on the market by label rating. The minimum diameter but maximum strength line is made with Dyneema making it last cast after cast. The nanofil uni-filament line features zero memory which eliminates the risks of line tangles. Includes exceptional sensitivity and zero stretch. Spool: 150 yds. Colors: Clear Mist, Lo-Vis Green, and Hi-Vis Chartreuse.