The Big Game Leader Line is a monfilament fishing line used as a leader typically attached to braided spectra line when fishing for large game fish species. The Big Game Leader, from Berkley's Trilene brand of line, offers fishermen an extremely tough, shock resistant leader line that will prove durable for all types of fishing applications. Berkley designed this leader line with ease of use and reliability in mind; the line exhibits excellent knot strength that is of the utmost importance when attaching leaders to braided line. We offer the Berkley Trilene Big Game Leader Line in twelve sizes: 30, 40, 50, 60, 80, 100, 130, 150, 200, 250, 300 and 400lb test. Sizes 30-80 come 55yds per spool, the 100-400 are 110yd coils.