1.HIGH QUALITY: baking sheet and cooling rack are made of high quality pure stainless steel 18/0 without any chemical coating or impurities, Rust and y for your daily use, A great replacement of aluminum pan 2.PERFECT SIZE: 4 Pieces, 2 baking pans are 9.33 x 6.97 x 1.00 inch and 2 Teenager of cooling racks both are 8.66 x 6.30 x 0.67 inch. Best professional bakeware set for dessert chef and baking lover, And perfect to be used as cookie sheet or baking sheet for your regular oven and toaster oven 3.EXQUISITE DESIGN: With deep full sides all around to contain more food and roll edges with no sharp spot, smooth edges, the parallel lines is dense to keep food from falling through anywhere. The roasting rack can also be used separately 4.WIDE FUNCTIONS: Small sheet pan for baking and roasting cookies. The cookie pan great for cinnamon rolls, Sticky buns, Brownies, Corn bread and fruit cobblers and etc. Each roasting rack perfectly fits in the baking pans, for baking and cooling food. They also can be used separately as broiling rack and baking pan