Hi Catch Momoi's 100% Hard Fluorocarbon is ideal for line bass - Leader where high resistance and reliability are required for extreme fishing. This product takes advantage of all the characteristics of Fluorocarbon such as high density, high resistance to abrasion and optical refraction practically identical to water, to give the angler the best product in its series to use even as a main line. With the Wind on system leader you will join the line of the reel with the leader or low line through the Super PE multifilament that it includes. In this way you can introduce the leader inside the reel, achieving greater security and better handling of the captured piece. Measurement: 25' - 7.5 meters.