Scratch-, dent- and stain-proof, ultra-smooth porcelain surface cleans easily without hazing or ghosting. Heavy-duty steel backing provides dual-purpose, blackboard and magnetic-bulletin-board, versatility. Contemporary, anodized aluminum frame matches the decor of modern classrooms and briefing rooms. Included full-length rail allows you to keep chalk and erasers close at hand. Mounting kit and detailed instructions make accurate installation easy. Heavy-gauge wrap-around crimp construction. Board Type: Chalk; Magnetic; Board Width: 72 in; Board Height: 48 in; Board Depth: N/A.