Enclosed Magnetic Directory Board w/ Doors, Gray FrameFeatures Includes security lock, one key and mounting kit. Black, magnetic surface, changeable letter directory. Spell out information with magnetic letters (sold separately), or post documents with magnets. For indoor use. Shatterproof, locking acrylic doors keep messaging secure. Radius edge aluminum frame features a powder coat finish. Mounting hardware included Details Protect and preserve important communications with the Quartet Radius Design