The Rio Flouroflex Saltwater Tippet is a medium stiff, 100% fluorocarbon and is ideal for saltwater species and throwing large flies. The Flouroflex is a tough saltwater tippet, abrasion resistant, super strong, and easy to knot. The Rio Flouroflex Saltwater Tippet is great for casting the largest of flies and in tough winds, this tippet is great for all saltwater species, especially snook, tarpon and even muskies!