● Natural aluminum commercial bakeware is made of pure aluminum which will never rust for a lifetime of durability ● Baked goods rise and bake evenly due to aluminums superior heat conductivity and the reinforced encapsulated steel rim prevents warping ● Easy clean up, hand wash only ● Pan exterior dimensions 15.63 x 9.63 x 3.25 inches and interior dimensions 13 x 8.88 x 2.5 inches ● Proudly made in the USA