RIO's Fluoroflex Saltwater Tippet is medium-stiff and made from 100% fluorocarbon material. A tough saltwater tippet, the Fluoroflex is abrasion resistant, super strong, and easy to knot. Great for casting the largest of flies and in tough winds, this tippet is great for all saltwater species. Features 100% Fluorocarbon. See Pound Test above for amount of material per spool.