Pressure cooker features: 1)High quality aluminum alloy pressure cooker,produced according to the China National Standard (GB13623-2003). 2)High intensity and rigidity withstand wear and scrape. 3)Multiple safety device,overpressure valve,& regulator ensure complete safe operation. 4)This pressure cooker can save half of the cooking time compared to ordinary cookers. 5)Flavor is enhanced and valuale vitamins and minerals are retained. 6)Ideal for use on gas stoves. 7)More safe compared with common pressure cookers. Pressure Cooker Packing Information: ModelDescriptionMaster Carton SizeQ'ty/CTNJY-HPC18-3P3L Pressure Cooker65.5*22.5*366JY-HPC20-4P4L Pressure Cooker70.5*24*38.56JY-HPC22-5P5L Pressure Cooker77*26.5*39.26JY-HPC24-7P7L Pressure Cooker82*28*41.46JY-HPC26-9P9L Pressure Cooker88*30*45.26JY-HPC28-11P11L Pressure Cooker63*32*52.54 Model no notes: 1. JY is short for our company name Ji Yi. 2. HPC is short for product name Higher Safety Pressure Cooker. 3. Digital 18;20;22;24;26;28 is the Pressure Cooker diameter. 4. Suffix digital 3;4;5;7;9;11 is the Pressure Cooker capacity. 5. Suffix letter "A" is the finishing surface of the product- Anodized type. Suffix letter "P" is the finishing surface of the product- Polishing type.