Hakka Sausage Stuffer 11 Lbs/5 L Vertical Sausage Maker METAL CONSTRUCTION - Stainless Steel cylinder and spout, as well as stable metal base and crank. All gears and pistons are also constructed of durable metal. FILLING - Cylinder of the stuffer tilts back which allows for convenient filling AIRFLOW - Piston includes an air release valve to allow air to escape and keep stuffer from overheating NOZZLES - 4 plastic nozzles included: 10 mm ( 0.4 inch), 20 mm (0.79 inch), 30 mm (1.18 inch) and 40 mm (1.57 inch) DISASSEMBLY - Disassembles in seconds for easy cleaning and convenient storage