The Heavy-Duty full-sized Sheet Pan is constructed of impact-resistant 3000 series aluminum with a galvanized, non-rusting rod for reinforcement. The concave bottom of the Pan flattens during heating for the most-even heating distribution and has a closed beading edge perfect for baking anything from chicken and vegetables to cookies and granola without spillage. The bun pan is essential for any bakery or restaurant, and is also excellent for placing under a cake or bread pan to catch overflowing batter. Made in the U.S.A. - Aluminum; Gauge 18 (Heavy Duty) - Full size - Length 18 in - Width 26 in - Height 1 in - Sold per each