Scientific Angler's Absolute Hard Mono Tippet is made with proprietary copolymer blends that are designed to drastically reduce water absorption while maintaining an optimal suppleness for high knot strength. Absolute nylon leaders and tippets have a 29% higher wet knot strength compared to the previous material and up to 40% higher wet knot strength when compared to the competition. Features General purpose, medium stiff monofilament for leader building Unique open-hub spool for easy dispensing Proprietary blend