"BASS HARD FC" does not allow compromise. Compared to THE BLACK FC, BASS HARD FC has moderate firmness, so sensitivity is improved by reducing thread dandruff and increasing straightness.
In addition, the initial elongation is low, so even a small amount of weight can be sensitively felt. Because it is characterized by very high sensitivity, the fluorocarbon line is effective when fishing at the bottom or in situations where you want sensitivity the most.