RIO"s original 100% fluorocarbon is still the best value fluorocarbon tippet. Ideal for saltwater, this tippet has been acclaimed throughout the world and has a great reputation for reliability. Highly abrasion-resistant and slightly stiffer than Powerflex and Fluoroflex Plus. Recommended for saltwater and anadromous species. 15 to 50 yards per spool, depending on the weight.