Available with the contemporary magnet-attracting changeable letter surface or the traditional black felt surface. Both surfaces are easy to update and offer the high-profile visibility necessary as prominent information centers.The radius corner aluminum frame has a powder coated finish and features shatter-resistant acrylic windows.The locking doors hang on full length hinges and are easy to open and close. All boards feature a security-lock mounting system to prevent theft and vandalism. For indoor use. 318 white 3/4" (19mm) Helvetica style characters included. Molded magnetic letters sold separately.