Every, premýer cookware comes with a 25 year manufacture guarantee. Our mission is to continue and maintain a high quality stainless steel (304 - aýsý certified 18cr/10ni) production. Approved and certified by; tuv, ce, tse, iso 9001:2000 and fda © (food and drug administration), our companies mission promises, an easy to maintain, rub-proof surface, acid resistance and a resistant to the change of temperature allowing the heat to be stored and distributed evenly for a longer time, saving energy and giving a great taste in our kitchens. Premieres sophisticated 3 layer design is suitable for all modern energy sources including induction tops. Our aluminum encapsulated impact-bonded bottom gives our product more durability over our competitors. As requested