Scientific Anglers 7' Sonar Leader KitImagine a world where you need to get a fly down to the fish, but all you have is a floating fly line. In that world, the perfect solution would be our SONAR Sinking Leaders. Luckily for you, we live in such a world. These leaders attach to the end of a fly line and can put your fly anywhere in the water column. Sonar leaders feature welded loops on the rear end and a micro swivel on the front end to reduce line twist. With five different densities