Nicole Fantini Half Size Aluminum Cookie Sheets are 17.5" L X12.87" WX1.25" H, designed to provide excellent baking results with their high-quality construction. These nonstick and reusable sheets come with a white dome lid, making them ideal for baking cakes, cookies, brownies, and lasagna. The nonstick surface ensures easy release of baked goods and simplifies cleanup. Perfect for both home bakers and professionals, these half-size sheets are versatile and convenient, fitting standard ovens comfortably. The white dome lids help preserve the freshness of your baked items, making these sheets suitable for transport and storage as well.