UMPQUA WATERPROOF BUG LOCKER MEDIUM 20 COMPARTMENT ADJUSTABLE FLY BOX – The Medium fits plenty of flies and is at home in a boat bag or larger Sling Packs. Fully adjustable to accommodate big dries or articulated streamers. Durable and shatterproof case for both fresh and saltwater use with a 3-D molded high-grip FlyTrap closure system. Dimensions – 10.5 x 7 x 1.75″.