This mail slot measures 10 inches wide and 4 inches tall. Comes complete with mounting hardware. Rear mounts with two bolts (provided). This slot has an opening of approximately 6 1/8 inches wide and 2 inches tall. This product comes as an unlacquered natural brass and it will patina over time. A high strength lacquer coating is available upon request. Four finishes available: Polished Brass, Antique Brass, Oil Rubbed Bronze. The average lead time for this particular product is 4 to 6 Business Days.