The Beulah Serum Fly Line is a fully integrated shooting head fly line designed for overhead casting with single and two hand fly rods. The Serum fly line is ideal to fish from beach or boat, for species that require quick, long casts with medium to large flies. A powerful, condensed head helps to load the rod quickly and shoot extreme lengths of fly line with minimal back casts. Each Serum fly line has a clear intermediate sinking tip, tapered to positively transfer casting energy from the head to the fly. Serum fly lines come with printed line ID, and have 35 lb core tensile strength and 130 foot overall length.