Unsurpassed in performance and durability, Centurion porcelain-on-steel markerboards are the finest markerboards in the world. Specifically designed for everyday use, Centurion markerboards are built to last and carry a fifty-year guarantee. Centurion’s porcelain-on-steel surface is the hardest marker surface available and will resist scratching, denting or staining. Due to its steel substrate, Centurion markerboards accept magnetic accessories. Centurion markerboards, with their fifty-year guarantee, are the best value when measured over their years of dependable service.