The San Juan Worm is an exceptionally effective fly for trout in a wide variety of fishing situations. Our Tie It & Try It San Juan Worm Kit teaches you how to tie not only the "basic" San Juan Worm but also a number of proven and effective variations on the basic San Juan Worm design. The kit includes all materials needed (except tying thread) to tie at least 15 San Juan Worms (including beaded versions) in a variety of styles and colors, plus a 20-page full-size guide to tying and fishing this great fly.