Scientific Anglers Sonar Titan Hover/Sink 2/Sink 4 Fly Line loads quickly and carries the biggest flies to the farthest targets. Triple-density construction provides a straight-line connection to your fly, and it feels as if youre casting a floating line. Short, powerful head delivers excellent turnover. Sonar sinking technology gets your flies beneath the surface, so you can pick up the fish that are lurking there. Shooting Texture technology not only reduces friction but also provides longer casts, easier pickup and increased durability. Advanced Shooting Technology (AST) delivers continual slickness, which allows the line to shoot farther, so you can make longer casts. Plus, it helps the line shed dirt, algae and other drag particles with ease. Scientific Anglers Line Identification (SAID) allows you to identify your lines at a glance. Equipped with a braided multifilament core and welded loops. For temperate climates. Made in USA. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Full Sink Freshwater.