Professional pastry chefs and bakeries bake on aluminum sheets for perfect results. You can too, with our commercial quality Naturals Bake ware. Made of pure aluminum which will never rust, these pans produce evenly browned baked treats time after time. Rims are reinforced with Galvanized Steel to prevent warping. This set of 4 mini loaf pans is perfect for miniature breads or cakes. Lifetime Warranty, Made in the USA.