Tacky Fly Box. Welcome to the next generation of fly boxes. Sticky silicone sheets team with a unique, tear-drop cutout slit system to create the ultimate in fly box for fly storage. The slim-line clear polycarbonate body is durable and shatter-resistant, and fits unobtrusevly in a vest or pack pocket. Magnetic closure system for ease of use. Box holds 168 flies. 7" x 3½" x ¾". Polycarbonate/silicone. Imported.