Durable aluminum and ceramic bakeware. Stain resistant easy to clean material. Suitable for any baking temperature. Beautiful white style makes dishes ready to serve out of the oven. 19.4W x 12D x .78H in. cookie sheet. When you bake up a batch of delicious cookies, the Range Kleen CeramaBake Cookie Sheet lets you serve them straight out of the oven thanks to its beautiful white finish. But this coating has a purpose, tooâ€”its innovative ceramic design resists against stains and helps food heat evenly. This sheet is made from aluminized steel for long-wearing appeal.