Tightly braided high tenacity Polyester multifilament yarn encapsulates a 99.9% pure lead core. Our “pure” lead construction offers a smaller diameter than standard lead core lines. Color metering every 10 yards with a high visibility dye enables the angler to instantly determine depth. A must for every angler who needs extra weight for deep water trolling. Comes in color-metered spools that change every 10 yards.