This is a new type of balance that leads to your fish. Extremely reduced thread tangles. (High sensitivity new shape) S Size (Directions when tide is moving) M (Directing when the tide is loose). New shape with extremely reduced line tangles. High sensitivity to prevent delicate objects from escaping. No spring sensation and can be instantly transmitted. Thin shaft stainless steel that is difficult to pick up tide. Adopts twin lock snaps that are difficult to slide during the bottom and crunch.