RIO Tropical Tarpon Saltwater II Floating Fly Fishing 100ft Line The Perfect Line ForAnglers Targeting Tarpon And OtherLarge Tropical Species Effortless casting, accurate line design thatturns over typical tarpon flies with ease Tough, slick coating to ensure high line speedand easy line shoot Built on a strong, medium stiff core which willnot wilt in the heat Extreme Slickness with AgentX. Dualtone, 75-100 degrees Fahrenheit ( 24-38 degrees Celsius). Front and back loop.