The copolymer and fluorocarbon based technologies of P-Line fishing line is what makes it one of the greatest. It is enjoyed by both freshwater and saltwater fishermen for many different situations. This technology creates a smooth, round line that gives a great advantage of casting farther. This company produces high quality fishing line that is built to allow more line to fit on your reel! When using P-Line you know you are gearing up for a great catch!