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 storage. The slim-line clear polycarbonate body is durable and shatter-resistant, and fits unobtrusively in a vest or pack pocket. Magnetic closure system for ease of use. Box holds 168 flies. 7″ x 3½” x ¾”. Or, choose the 3″ x 5″ size for flies size 18 or smaller; it holds between 90-180 flies and fits easily in a shirt pocket and can also be hung from a lanyard. With a silicone mat designed specifically for larger flies. The Big Bug Box holds flies with hook sizes up to 2/0 and measures 3⅞”W x 7⅛”L X 1″D. Polycarbonate/silicone. Imported.