Clear, tempered glass sliding doors give an unobstructed view of displays. Information is easy to update and change. Dense cork holds push pins tightly and self-heals when pins are removed. Cork board has a dense, fiberboard backing, sealed to reduce moisture absorption and resist warping. Anodized aluminum frame. Locking doors. Includes mounting hardware and showcase lock. Board Type: Enclosed Bulletin; Board Width: 48 in; Board Height: 36 in; Board Depth: N/A.