P-Line HALO Fluorocarbon, which is the first Co-Fluoride introduced into the United States, has a blend of pure fluorocarbon crystals, which gives you the best combination of strength, sensitivity, and castability in the best all purpose fluorocarbon line available on the market. With a low refractive index, and a specific gravity that is much higher than traditional fishing lines, Halo becomes virtually invisible underwater plus sicks at a much faster rate, making this line the optimum choice for lakes, rivers and inshore saltwater fishing. Finest raw materials available The first Co-Fluoride introduced into the United States Blended types of pure fluorocarbon crystals A Solid combination of strength, sensitivity, and castability 100% pure fluorocarbon Low refractive index Invisible underwater Much higher gravity than traditional fishing lines Mist green 10lb line weight