Improved durability design Carbon fiber and longlasting rubber protect fishing lines from damage, extend tool life, and guard lines during knotting to deliver steady, reliable performance over time. Portable fishing companion Fits in a tackle box and enables quick knot tying. Its lightweight, compact design simplifies operations and enhances portability for convenient use outdoors. craftsmanship Ergonomic design with smooth surfaces and a nonslip grip. quality detailing supports consistent knotting efficiency and comfortable handling. Timesaving knotting Compatible with PE lines for strength knots. Polished valve interior ensures smooth line feeding during use for efficient knot preparation. Applications PE line users on freshwater or saltwater trips: tie strong, reliable knots quickly while protecting the line. Camping or hiking outings: compact, lightweight design fits in a gear kit or tackle box for easy field use. Boat, pier, or bank fishing: keep in the tackle box for fast knot tying when connecting leaders or lures, across various fishing environments.