This 13x9 baking pan is more than just quality bakewareit's also part of a convenient cutting system. The unique patented guideline grid around the outer edges of this pan allows you to simply line up an exclusive PerfectSlice cutting tool, and press down to create any portion size desired. every slice is beautifully uniform high-impact polystyrene cutting tool with silicone handle is tough enough to cut your treat yet won't damage your pan includes removable silicone sleeve that lines up perfectly with the pans guidelines for added safety and a comfortable grip when taking out of the oven heavy-duty nonstick carbon steel won't chip oven safe up to 450F Carbon steel/polystyrene/silicone. Dishwasher safe. Imported.