Sufix Castable Invisiline100% Fluorocarbon casts like mono and is virtually invisible. It is resistant to ultra violet rays that can damage lines, it is incredibly strong, abrasion resistant and sensitive. There is a very low-stretch index for optimal hook setting power and sinks 4 times faster than traditional nylon lines for getting your presentation to the strike zone faster. Castable Invisilinehas exceptional handling for both spinning and casting reels and the exclusive. Precision Winding virtually eliminates line memory. Features: Virtually disappears in the water for more natural presentation Casts and handles like a premium monofilament Incredibly strong and tough Performs great on casting and spinning reels