Baking tray is made of high quality stainless steel, No chemical substances and coatings into your food, Healthy, Durable and rustfree for daily cooking use, Great alternative to aluminum cookie sheets.Various 4 sizes for multifunctional use and fitting most home standard ovens, Perfect for baking cooking serving cookie, bread, cake, cupcake, pizza, bacon, fish or vegatable, Also can be used in bbq, catering, picnic