Simple and convenient Magne-Rite Markerboards have a surface made of PVC-coated steel. This surface eliminates ghosting and enhances writability, as well as color contrast. It's also magnetic so the board can handle bulletins easily. Trim styles include standard aluminum, deluxe and presidential. What is presidential trim? The corners of the markerboard are rounded and formed using injection molds. The resulting corners blend in much better with the overall trim. These boards also feature a 10 year guarantee.