Scientific Anglers Frequency Magnum Glow Line

Wouldn't you like to be able to see your fly line in the dark? Now you can! Think of this as the best line for fishing the nocturnal Hex hatch. Wouldn't it be handy to have an idea where your fly line was laying on the water, or when you hook that big trout, which way it ran into your backing.
The Frequency Magnum summed up in six words: big flies, big fish, small
price. Designed with an aggressive weight-forward head, the Magnum fly
line is built for tossing large flies, turning over split shot, and
blasting through the wind. In other words, this line is a bit of a
bully—which is great if you’re targeting bass, big trout, and light
saltwater game. It’s nice to have some muscle on your side.