Simply slide the eye of the fly onto one of the stainless steel hooks and insert the fly's hook into the slotted foam. A great box to hold your larger articulated flies streamers, saltwater flies, and salmon flies. This specialized fly box utilizes Plan D licensed patent pending design for storing up to 16 of your favorite articulated fresh or saltwater flies. Equally at home in a boat bag or stuffed in the top of your waders, this is the box you need. flies shown for display only