Ghent - GHEM1231 Unsurpassed in performance and durability, aluminum framed porcelain-on-steel markerboard features heavy 28-gauge porcelain steel surface, the hardest available marker surface, on a 3/8" backing for years of dependable service. Surface resists scratching, denting, staining, and due to its steel substrate, accepts magnetic accessories. Easily installable marker tray with protective end caps is shipped detached to lower damage potential. Markerboard comes with "L" bracket hangers for easy mounting, one marker and one eraser.