The Maglula UZI SMG LULA Loader/Unloader loads all 20, 25, 32, and 40 round .9mm UZI magazines. It is simple to use in either loading or unloading mode. The loader/unloader eliminates thumb pain and wear on feed lips. It also prolongs magazine life. It is lightweight and small enough to fit in your pocket. The loader/unloader is crafted from durable reinforced polymer and is reliable in all weather.