Reaction Tackle 100% Pure Fluorocarbon Fishing Line - High Strength, Abrasion-Resistant, Fast-Sinking, Virtually Invisible, with Added Sensitivity - Ideal for Saltwater and Freshwater Leader Line

The Reaction Tackle Fluorocarbon comes in a pink color that anglers report to be as virtually invisible as the clear variant. It has a lot of similarities with monofilament as a main line on the spool, but it does not absorb water, does not stretch, is more abrasion-resistant, and less visible, characteristics that are beneficial when dealing with line-shy fish. The line is manufactured in China and comes in a 4-inch diameter spool that's just a hair over 3/4" thick. It's generally more expensive than mono, which explains why people generally use it as a leader. The most common complaint about the product is the spool design being impractical.