Commonly used to hold 840 rounds of 5.56MM ammo, and various other goods, so the stenciling may be of other types of ammo. These ammo cans are from different parts of the military. Even though they may or may not say 50 Cal on the side of the can, they are indeed, empty 50 Cal ammo cans. Grade of can will vary. Product Specifications Product Dimensions: (Length)11 inches x (Width)5.5 inches x (Height)7 inches. Ammunition Box Material: Carbon steel SUS304, Aluminium 5052