The world's best selling powder fly floatant. The Shimazaki Dry Shake is the only fly floatant that can give your fly not just water-repellency but true flotation by air among microparticles. Put the fly in Shimazaki Dry Shake and shake it vigorously for several times. The fly becomes thoroughly water repellent to the tip of hackle fiber and sits on the surface film exactly as a natural insect does. Contain no components that is harmful for user or environment.