"Zero Dun Worm 217" is a high response down shot system with sinker and hook set directly to the swivel. It is easy to penetrate the cover due to its structure, and the bottom sensing performance is also excellent. It should be noted that the fall posture, the structure in which the sinker falls linearly ahead of time, enables a tighter attack on structures such as piles, synergizes with the worm's action response, and the difference is under pressure. It will be obvious. The "DS-6 type stick" that emphasizes picking is used for the sinker. The approach in bait finesse also adds a small size to aim at, and the range of fishing with zero dang is further expanded.