Elegant Presidential Trim is made from lengths of rounded anodized aluminum joined with matching injection-molded corner pieces. Markerboard is Porcelain on Steel for when you need a surface that will last as long as the life of a building, choose porcelain on steel markerboard surfaces. This magnetic surface creates a threefold improvement in contrast sensitivity and visual acuity. Reduced surface light distortion and enhanced visibility provides optimum eye comfort. Pens write on and erase with a dry cloth, tissue or eraser. Dual use as a magnetic bulletin board and writing surface. Smooth low-gloss surface offers greater color contrast for markers..