This is an aluminum 22.0 litre pressure cooker canner with a whistling pressure regulator.The hawkins bigboy has been designed primarily for restaurants, catering and big family get togethers Hawkins pressure cooker has inside fitting lid that opens only when pressure falls Comes with a set of containers for cooking different dishes at the same time The 22 litre bigboy pressure cookers have a pair of sturdy lifting handles and an extra strong lid Strong body made from commercially pure, 4.8mm virgin aluminum Shielded safety valve Long lasting gasket Unbreakable stay-cool plastic handle New improved pressure regulator Sturdy fixed pivotAssembly Required: No Country of Manufacture: India Depth (Front to Back): 19 Height: 17 Weight: 20 Width (Side To Side): 16