... body, 1.2mm lid. capsule-bottom 1, best pressure cooker have 3 safety set, pressure control valve, safety indicator valve,safety window,open ... -closed/locking valve 2, large area pressure-releasing safety window, releasing pressure rapidly 3, open and shut the pot ... easy to clean. 5, pressure-limiting valve,setting pressure accutately and safely,even upon the limited pressure. 6, high security's ...