Description: Aluminum Alloy,Elastic silicone spacers, overflow proofs and -proofs ,Cooking, soup, rice, pastries, everything. Automatic pressure relief valves, removable, easy to clean.Emergency pressure relief valves, anti - blockage, safe and durable. Safety handle, heat insulation and heat protection (be careful not to open the fire so that the flame burns to the handle). Suitable for gas stoves and other heat sources, high intensity induction, uniform heating, not easy to paste pot, energy saving. Specification: 1.8L: Height 17cm,Pot Height 9cm,Dia 16cm,Mouth 15cm 2.0L: Height 18cm, Pot Height 9cm,Dia 18cm,Mouth 17cm 3.0L: Height 22cm,Pot Height 13cm,Dia 18cm,Mouth 17cm 3.5L: Height 20cm,Pot Height 10cm,Dia 20cm,Mouth 19cm 4.0L: Height 22cm,Pot Height 13.5cm,Dia 20cm,Mouth 19cm Size Chart: Usage: 1, check the sealing loop, wipe a little cooking oil, increase the sealing. 2. Rotate the lid. 3. Install the pressure relief valves. 4. Rotate the black knob clockwise until the lid does not move. 5. Fire, after the pressure limiting valves is discharged, change to a small fire and cook for 3-5 minutes to cease fire. 6, then place, slightly lift the pressure limiting valves by hand, if the air is not violent, you can pull out the pressure limiting valves and open the pot. 7. Red emergency discharge valves, pressure relief valves is when the hole of the pressure limiting valves is blocked, the pressure in the pot can not come out, at this time, the pressure relief valves can discharge the pressure in the pot to achieve protection. Package Includes: 1 Piece Pressure Cook