Fly Box. For sale is a beautiful wooden fly box, made from American grown Oak, hand turned, stained and marine varnished for lasting durability. The interior has a magnet floor keeping all flies safe and secure during any weather on the water. The lid has a laser engraved trout etched on it, with custom designs or personalization available. The box measures 3 inches diameter, 1 3/4 inches tall with lid, and interior depth of .75 inches.