This scratch resistant Black powder coated steel mailbox has a peaked roof Large mailbox size: 15.5 inch w x 13.5 inch H x 7.5 inch D will hold several days of mail Heavy duty lock with 2 keys adds security Incoming mail slot opening is 12.875 inch long and 1.5” wide and will fit most envelopes and magazines but keep unwanted hand out Mounting hardware not included. If mounting to a masonry wall, use masonry mounting screws with masonry anchors (at least 1-1/2 inch long)