Holds Up To Twelve 10 oz. Cartridges, Twelve 20 oz. Sausage Packs, Or five 29 oz. CartridgesHeavy DutyWaterproof Nylon ConstructionInsulated, Patented DesignLow Energy ConsumptionRetains Heat When UnpluggedSmaller Size Also Available (AC-002)12 VDC 100 Watt Inverter wUSB Also Available (AC-003)