Marine Steals Blue DC (Marine Steals Blue Double Core): Plasma tinted to a blue color with the same wavelength as water, and the refractive index is adjusted to approximate the refractive index of water, 1.33. Marine Stealth Blue DC with a stealth function that does not make fish wary. It is the best assist line for scenes where the jig looks slow and slow pitch fishing. It is also possible to extract the core and create a chichiwa, or to incorporate nylon, fluorocarbon, etc.