1.Mechanical knob fission type. 2.Handle by knob,heating,warming,pressure-retaining 1.Mechanical fission type. 2.Handle by knob,heating,warming,pressure-retaining function.3.Stainless steel shell,fingerprint-shielding ,conciseness,fashionable4.Multiple-protective pressure-limiting device5.Super thickness inner pot,non-stick,easy to clean6.Able to heating,stewing,braising,cooking