In a medium size, this glow-in-the-dark chenille will help your flies stand out in deep or murky water or in other low light conditions. The white chenille glows light green and other colors are available. 3 yards per package.
It seems to glow really well, with just a quick blast from an led light. The only drawback is that it's very plasticky; not at all the same texture as chenille. Not a huge deal, but something to consider.