Incredibly strong fly tying material for all saltwater flies, bass bugs, big streamers, and steelhead flies. Saltwater/bass thread is nearly as strong as Kevlar®, yet unlike Kevlar it does not cut the material on which it is wound. Also takes bright-colored dyes well. Fly tying material in brown, white, fluorescent red, chartreuse, grey, black, cream, yellow, olive, light pink, fluorescent orange. 100 yards per spool.