With its straight sides and sliding lid, our pan is the professional's secret to creating perfectly square breads for sandwiches and canapes. Baked to a savory golden brown, bread turns out with flat, even sides that make it easy to cut uniform slices. Commercial-grade aluminized steel distributes heat quickly and evenly for consistent baking results. Sliding lid forces the rising dough to swell uniformly into a flat top. Straight sides produce professional-quality square loaves for even slicing. Won't corrode or rust, even with heavy use. Coated wire reinforcement along the rim maximizes durability and resistance to rust and warping. Folded construction enhances strength. Made exclusively for Williams Sonoma in the USA.