Normally, nylon changes at room temperature. Once the lure is cast and the line is in the water, it will immediately start sucking in water, causing changes in the thread. By absorbing water, the line becomes soft and stretched. There are good sides, but the stretch also reduces sensitivity and makes the picking sweeter. This [BASS HARD NL] successfully overcomes these weaknesses. Even if you use it for one day, you can use it with a crispy feeling, and the accuracy of sensitivity lure control does not decrease.