Product Details● The pressure cooker is made of an aluminium base which is thick and machine pressed. * Body* The outer lid pressure cooker made from aluminium which is light in weight and long lasting. **Precision Weight Valve** It's level of safety feature to release pressure which makes the cooking safe and time saving. It is made up of brass with steel coating on it for durability. * Gasket Release System* Its second level of safety provide in Prestige pressure cooker, in case there is any blockage of vent tube, gasket will bulge and steam will release through the slot. * Metallic Safety Plug*