The Surecatch Wind On Leader has a breaking strength of 20kg, which is ideal when targeting species such as snapper, gummy sharks, jewfish, and other medium-sized fish. This wind on leader will ensure the line runs smoothly through your guides when casting or retrieving your line. The waxed thread encasing the knot means that the days of your hand-tied chunky knots getting stuck in your guides are over. Simply connect the Surecatch Wind On Leader to your mainline and loop it through the dacron, and you have a strong and reliable connection. The line is abrasion-resistant, which is important when fishing around reefs, oyster racks or submerged snags to give you the best chance of landing the fish. The Surecatch Wind On Leader is an inexpensive and hassle-free way of connecting a leader to the mainline on your reel.