The HKJ Chef Stainless Steel Baking Sheet is make of 430 stainless steel without chemical coating or any other materials.No more aluminum into your food, Good replacement to aluminum pan. It is very healthful and safe to protect your family health.The superior mirror finish for easy and effortless cleanup. Dimension: Length12x Width10x Height1 inch Length16x Width12x Height1 inch Material: 430 Stainless steel Color: Sliver Weight: 2278g Package included: 2* Cookie sheet 12L x 10W x1H inch 2* Cookie sheet 16L x 12W x1L inch Why you need to chose Stainless steel Baking sheets Because In Order To Protect Family's health 1. Stainless steel is more healthy and non-toxic than aluminum 2. Stainless steel is dishwasher-safe, but aluminum not 3. Stainless steel is more easily to clean even hand-wash 4. Stainless steel, food cook more evenly, less stick Notice: 1. Please use soft cleaning rag to clean the sheets for the beauty of its surface. 2. Please clean and dry the baking pan after using for its durability. 3. Make more delicious,have a good time with family. TIP for Stainless Steel 1.You can use a light spray or grease the pan with a little oil or butter to avoid food stick. 2.Please do not use sharp objects to scratch the surface.