The ultimate all-around trout line, the Scientific Anglers Frequency Trout Fly Line sports a versatile taper that excels with most flies and in most weather conditions. Advanced Shooting Technology provides continual line slickness, allowing the line to shoot farther as it moves through the guides. Also features midlength head and braided multifilament core. Welded loop. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fly Line.