Fishing casting line: high tensile strength for strong casts; anti-bite and abrasion resistance; soft for easy handling and knot tying. Invisible fishing line: lightweight and low water absorption; minimizes visibility in water and reduces drag for smoother performance. Fishing wire: strong and durable for commercial fishing; designed to withstand heavy catches and repeated use. Main line for fishing: ideal for fishing enthusiasts; versatile and reliable for a variety of setups and targets. Use scenarios: - Freshwater lake or pond fishing for bass and panfish; use the main line for general setups and the casting line for longer casts near structure. - Commercial or heavy-duty fishing where durability matters; use the fishing wire for handling large catches and rough conditions. - Clear-water conditions or line-shy species; use the invisible line to reduce visibility and improve bite indication.