Display directories, schedules or information on indoor magnetic directory. Set up, update and change postings quickly and easily with magnetic letters (sold separately). Shatterproof acrylic windows and locking doors protect your postings. Contemporary radius-edge aluminum frame with graphite finish adds style and durability. Includes security-lock mounting hardware, which prevents theft and vandalism. Board Type: Enclosed Bulletin; Board Width: 48 in; Board Height: 36 in; Board Depth: N/A.