Scientific Anglers Sonar Leaders are perfect additions to single and double handed lines when you want to create a quick floating or slinking tip.
Sinking versions have a micro swivels on the front end. All Sonar Leaders have 25lbs mono cores and feature printed Line ID to easily identify the density and length of the tip. 7ft versions are all 35grains and 10ft versions are all 50 grains. Floating versions do not have micro swivels.