If you have an open back mail slot but want more privacy, this handsome brass hood will do the trick. It's large enough to fit over smaller mail slot trim, or it can stand alone. Works on the exterior as well. Offered in 9 great finishes to go with any decor (mail slot sold separately).
Dimensions: 12 7/8" W x 3 5/8" H. Horizontal C-C of screw holes is 12". Vertical C-C of screw holes is 2 1/2".