Molded out of rugged polypropylene plastic, these comfortably handled ammo cans will hold up to some pretty harsh treatment. Utilizing MTM's tongue and groove O-Ring seal system for a superior water-resistant seal, these cans are designed to fit the included ammo boxes perfectly. A heavy-duty dual latching system makes for a better seal and less likely to open accidentally. Double padlock tabs along with molded-in stacking ridges, make these solid containers the perfect solution to so many storage needs. Includes four (4) Flip Top 100 Round Ammo Boxes that fit the following cartridges: 22-250 Remington, 243 Winchester, 308 Winchester. Dimensions are 13.5" x 8.5" x 7.5"