With a lacquered finish to withstand the elements, the cast iron letter slot has a beautifully detailed floral and garland motif. The overall dimensions of each side are 3.125 x 9.875 x 3.25 in with the slot opening being large enough for a standard letter. Sturdy through-bolt door installation works with a door up to thickness of 2 3/4″. Doors less than 2 3/4″ thick will require cutting the mounting bolts (easily done with a hacksaw). Best suited for installation in a sheltered location like a porch or overhang. All needed mounting hardware is included. This item weighs 2.5 pounds and ships via the US Postal Service.