With its one-button locking system, uniquely designed lid and intuitive pressure regulating controls, the Calphalon 6-qt. Stainless Steel Pressure Cooker is exceptionally easy to use. It's great for weeknight cooking because it can reduce cooking times by 50% or more, which means your pot roast, shorts ribs, rice or chili will be done in record time. The easy-to-use cover has a unique locking rim that secures the cover to the base in any position _ there's no need to thread or align the cover to get it on right _ and it locks with just the touch of a button. The spring-loaded pressure indicator pin pops up when full pressure is reached so you can monitor cooking times, and the pressure release dial allows you to select a high or low pressure setting for cooking, or safely release steam after you're finished.