Perfect for gear bags and drift trips, these Our Streamer Fly Boxes conveniently store large quantities of flies. Slit foam on both sides of the interior and also on the top of the box. These hold small hairbug bass flies to large muskie and saltwater flies. Zerust rust inhibitor in the box protects against hook corrosion. Sizes: Medium 10L x 8W x 3-1/4H. Large 13.5L x10W x 3-3/4H. Extra-Large 18.5L x 13.5W x 5-3/4H. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fly Boxes.