RIOs General Purpose Tropical Saltwater lines are designed for anglers that fish in warm climates for a multitude of species. The lines features short, powerful front tapers and are slightly heavier than the industry standard to cast large flies and load powerful saltwater rods with ease. Each line is built on a medium stiff core, has a hard, tropical coating that will not wilt in the heat, and features welded loops on both ends for easy rigging.