The 3.5L & 5.5L Ultra duracook Junior Celebrations pack is made of AISI 304 food-grade stainless steel and ensures rust-free healthy food. The high-impact bonded 3-layer composite base enables even heat distribution through the bottom and aids uniform cooking without any burning or charring. The cooking time is also much less than in other regular cookers. It comes with a toughened glass lid the lids are interchangeable for your convenience. The heat-resistant & heavy solid bakelite handles with twin screws ensure that handles do not become loose. Healthy and fast cooking, and durability are good reasons to upgrade to an Ultra duracook stainless steel pressure cooker.