The role of the fishing leader 1. Prevent the sharp teeth of the fish from breaking the fishing line. 2. Protect the mainline from damage and prevent pulling at the moment of casting. 3. Protect the front section of the mainline, and avoid friction and scratching after dragging the bait to take up the line or catching the fish. 4. Buffering effect, offsetting the instantaneous breakage after the middle fish. 5. Conceal the mainline to reduce the fishs alertness after discovering the mainline. 6. Protect the fishing rod and the identification function when retracting the bait. Prevent the bait from hitting the fishing rod and injuring people. Stainless steel line dia: 0.5mm Test:14kg/30lb Package including: 20pcs x 5.9inch Length Fishing wire 20pcs x 9.8inch Length Fishing wire 20pcs x 11.8inch Length Fishing wire Weight: 50g/1.7oz