Reinfoced steel strapps add strength and durability. Choose Lincoln Wear-Ever Professional roast pans for medium to heavy roasting needs. NSF approved for commercial use. Extra dent-resistant 3004 Aluminum Alloy. 4482-1/2 and 4483-1/2 pans have six lugs that enable these pans to function as covers. Loop handles. Superb strength. Please allow 1 week to 10 days for delivery of this item.