All Berry?s Ammo Boxes are made from high impact polypropylene for increased strength against cracking chipping warping expansion or contraction. Their Model #407 50 round boxes feature a stronger flip-top design allowing the securing of ammo storage with easy one-handed operation. Along with a translucent lid they now come with a black base for increased strength and a clean look. They are stackable they carry a lifetime warranty and they are made in the USA.Available in Blue Smoke and Clear lid colors#407 Ammo Box Cell Dimensions: 1.78? OAL x .48?.44 Special.44 Magnum.41 Magnum.44 - 40 Winchester.45 Long Colt.45 Winchester Magnum