This fishing line has only one strand and is made up of fluorine, carbon, and chlorine. Some of the reasons why fluorocarbon lines are so popular with anglers are that they are nearly invisible under the surface, which is ideal for catching fish that are timid or skeptical. Fluorocarbon fishing lines are also more resistant to abrasion, which means they will perform better with reefs, teeth, and scales. It’s also heavier than other fishing lines, so it’s suitable for bottom fishing.