SPECS: Tube of 50 pieces Made for saltwater fishing Recommended for trolling big game fish such as tuna, dolphin, sailfish, and wahoo Albright knots or haywire twist are suggested when using TECHNOLOGY: Highly corrosion-resistant saltwater grade material Rapid sink ability cuts though underwater currents for deeper depths and less drag Deeper troll uses less line in water Positive ions help attract fish and increase strike rates