Mechanical locking device. A special cam locks the lid and the body of the pressure cooker. Two pressure settings. 8lb and 12lb cook control for versatility when cooking. Visual pressure indicator. Raises to indicate the cooker is now at pressure. Directional pressure regulator. Ensures safe release of steam every time. This product is made from heavy gauge hard anodised aluminium, twice as strong as steel for incredible durability and amazing heat distribution. Comes with steamer basket. Cool touch phenolic handles. Non-stick interior. Trivet included. Gift boxed. Suitable for gas, electric and ceramic hobs and solid hotplates. Manufacturer's lifetime guarantee.