P-Line Salmon & Steelhead Leader Material is made of strong, abrasion-resistant fluorocarbon. This clear line is virtually invisible, making it perfect for use in heavily fished areas where fish may be line-shy, or in clear water conditions where other lines would be easily seen. Flexible for easy knot tying, yet strong enough for those big catches, P-Line Salmon/Steelhead Leader Material is an excellent addition to your salmon and steelhead arsenal.