National Hardware® N325-290 Solid Brass Mail Slot, 2" x 11", Satin NickelFor use on exterior entry doors. Spring action lid seals out weather and dirt. Decorative design for use on door. Use with National's #1911S mail slot on hollow doors. Manufactured of solid brass for maximum corrosion resistance. 2" x 11" Material: Solid Brass For use on exterior entry doors Spring action lid seals out weather and dirt Decorative design for use on door Use with National's #1911S mail slot on hollow doors Manufactured of solid brass