No, these are not grenades. They're original Hungarian M70 army issue canteens. There's a screw top which is fastened to the canteen by what looks like a suped-up key ring. Some will come with a clip, but not all. They're OD Green and the color will vary slightly as pictured. They measure 14cm (5.75") tall x 14cm (5.75") wide and 7cm (2.75") deep and have a holding capacity of 0.75 liters (25oz). Maybe missing the ring to lock the cap but are still in usable condition. We carry a variety of military issue canteens.