The 5' Airflo Polyleaders aid turn over of dry flies, nymphs and streamers. Constructed on a 12lb core as standard and come in an essential range of densities to present your flies effectively. Ideal for use with a single fly rig on rivers or stillwaters with tippet lengths of up to 10'. Industry leading welded loops wont let you down. Use with tippet up to 12lb breaking strain. The sink rate is measured in Inches Per Second (IPS).