18/8 stainless steel pressure cooker : Item NO. Caliber Capacity Thickness (body/bottom) Quantity Measure NLP-NES2240 22cm 4L 1.2/5.0mm 2pcs 0.035NLP-NES225022cm 5L 1.2/5.0mm2pcs 0.039NLP-NES2260 22cm 6L1.2/5.0mm 2pcs 0.043NLP-NES2270 22cm 7L1.2/5.0mm2pcs 0.048NLP-NES2480 24cm8L1.2/5.0mm 2pcs 0.055NLP-NES2490 24cm 9L 1.2/5.0mm 2pcs 0.060 >Construction Polished 18/8 quality stainless steel throughout with impact bonded diffuser base for even heat distribution and energy efficiency. Easy to clean, body is dishwasher safe.>Safety device:Triple safety system ensure complete safe operation(1)Locking handle - pressure cooker can not be opened when pressure cooker is under pressure.(2).Stainless steel pressure control valve with color indicator monitors pre-selected cooking pressure.(3) Two independent over pressure release valves.>FeaturesReduces cooking time by as much as 70%. 18/8 high quality stainless steel construction with mirror finishImpact bonded thermo heat conductive base places aluminum between two layers of stainless steel for even heat distribution. Easy to clean - dishwasher safe body. Ideal for use on all heat sources including gas, electric, ceramic top and induction. Triple safety system includes safety lock on handle, stainless steel pressure control valve with red color indicator to monitor pre-selected cooking pressure and two independent over-pressure release valves. Safety system prevents cooker from opening under pressure. Comes with detailed instructions CE ,GS approved.