Easy and quick setup! Shock leader with D snap light that solves troublesome leader knots. ●Good news for luremen who are not good at tying leaders. Loop-to-loop allows anyone to quickly and easily set it up. ●With snap for easy lure change. The snap uses a D snap light with a wide bottom shape that does not impair the free movement of the lure. ●A wide range of sizes available. With sizes ranging from No. 0.8 (3lb) to No. 6 (22lb), it can cover many types of lure fishing such as light salt game, shore jigging, egging, and sea bass. The total length of the leader is 1m for size 0.8-3 and 50cm for size 4-6. ●Useful in an emergency. Not only for beginners and those who are not good at tying leaders, but even if you try to tie a leader in a hurry after a problem, there are many situations where things don't go as planned, such as strong winds, darkness near you, or cold weather that makes your fingertips feel numb. .