Designed to promote even baking and browning of pressed, rolled and dropped cookies and pastries, our American-made cookie sheet heats quickly and evenly to ensure uniform baking. Commercial-grade aluminized steel distributes heat quickly and evenly for consistent baking results. An angled side provides a good grip when you're removing the pan from the oven; the longer sides are flat so cookies slide right off. Unique diamond-textured surface strengthens sheet pan while increasing airflow for even baking. Made exclusively for Williams Sonoma in the USA.