4 twists make it difficult to cut and put a heavy burden on the root winding work
By doing so, it is possible to realize a strong holding force.

The power hidden in the red assist line.
In an experiment with JAMSTEC, Japan Agency for Marine-Earth Science and Technology, we found that our color was submerged in the deep sea, and as a result, red looks blacker than black.
The experimental results have come out. Red is also said to be the most effective color for collecting fish, and it looks black in the deep sea and is a protective color with the seabed.
It is a color that has a fish-collecting effect at the depth of the water where the light shines.