● 100% fluorocarbon Tenkara dedicated Harris. ● Since the surface of the thread is coated with special silicon, it is resistant to scratches, and has excellent water repellency, abrasion resistance and durability. ● With the special silicon coating, it can be used safely as it slips well when tying strings and the strength does not come off easily. ● The spool is easy to use as the thumb can be put in the center. ● Since it is a polycarbonate spool, it is strong and does not break easily even if dropped, so it is safe.