Quartet PCA304G Quartet Magnetic Chalkboard, Porcelain-On-Steel, 48x36, Anodized Aluminum Frame Magnetic chalkboard features a premium porcelain board that resists scratches and dents. The chalkboard graduates to a new level of efficiency and productivity with the added benefit of magnetic capabilities. Premium porcelain board resists scratches and dents. Precision mitered corners provide added strength. Full-length chalk rail keeps accessories close at hand.