OXO Good Grips Non-Stick Pro Half Sheet 13 x 18 Inch Designed for sheet cakes and large batches of cookies. Heavy-gauge aluminized steel promotes even heat distribution. Swiss-engineered, ceramic-reinforced, two-layer coating allows for easy food release while protecting against scratching, staining and corrosion. Micro-textured, non-stick pattern minimizes surface contact and increases airflow for an even bake. Square-rolled edges add strength and offer a secure grip for easy transfer to and from oven.