The Door Numbers are used for house,floor and building, made of brass, stainless steel and aluminum. They are polished by hand. The Door Numbers are made of brass, stainless steel and aluminum. Polished by hand. MaterialSizeFinishBrass8",2"Polished and LacqueredPolished and ChromedStainless Steel3",2"Mirror PolishedSatin PolishedAluminum3",2"Polished AnodizedPowder Coated Door Number