Berkley NanoFil Uni-Filament Line is the next generation in fishing line, specifically designed for use with spinning reels. Berkley’s unified filament technology bonds hundreds of stronger than steel Dyneema nanofilaments at the molecular level. The line is then shaped into a unified filament fishing line. NanoFil Uni-Filament Line casts farther and allows the angler to feel everything. Minimum diameter with maximum strength – this is the thinnest line ever made. Zero memory virtually eliminates line tangles with zero stretch for sensitivity.