... 1.2mm body, 1.2mm lid, 1, stainless steel pressure cooker set have 4 safety set, pressure contral valve, safety indicator valve.safety ... window, releasing pressure rapidly.4,open and shut the pot free of push, easy and simple to handle.5, ... durable.9,imported high -quality 18- stainless steel and alloy aluminum reunite the bottom, imported high-quality18-8stainless stainless steel pressure cooker set