Fat Daddio&#39;s 3-Piece Cookie Sheet Set Three piece cookie sheet set Set includes: 2-13-inch by 18-inch by 1-inch bakers cookie sheet/jelly roll pan and 1-11-3/4-inch by 15-3/4-inch cooling rack Anodized aluminum bakeware is low maintenance and is protected from acidic foods, detergents and is dishwasher safe Professional abrasion resistant pans that won't peel, chip, flake or chalk With Fat Daddio's you get all the benefits of baking with aluminum with superior performance of anodizing