The GrowlerWerks uKeg 128 pressurized growler is a mini keg in the size of a full-gallon growler. This handsome stainless steel growler keeps beer cold, fresh and carbonated for two weeks. Ideal for on the go or at home use. Durable, double-wall vacuum insulated stainless steel. CO2 regulator cap with customizable tap handle and gauge. Brass carrying handle. Includes two 16 gram CO2 cartridges. The ideal gift for your toy loving beer fan.