Universal pouches (or patrol pouches). Used to carry personal ammo, grenades, and loaded magazines for the Bren gunner. This particular pouch is rarer in that it is larger than a standard bren pouch, and that it has a bottom access pouch. The measurements are; 11.5" high 5.5" wide 3" deep. Comes with a sewn-on khaki shoulder strap 46" long.