A waterproof and crush-proof box that is designed to carry your entire collection of flies! Total capacity will vary- but figure 180+ articulated streamers or 360+ standard streamers or 1200+ dry flies/nymphs should fit. - Two separate compartments - each opens independently - Each compartment has two sides of heavy duty slit foam measuring about 9 X 7 inches - Additionally one compartment has a swing leaf with two sided heavy foam - A total of 6 slit foam surfaces, - 1/4" foam will hold a ton of flies securely. - Plan D boxes are waterproof and vented with a waterproof membrane to keep box from ever vacuuming shut. - 3M adhesive keeps it all in place. - Marine grade 316 stainless steel hinges. Approximate external dimensions are 10" (length) X 7.75" (height) X 4.75" (width)