Horizontal Sliding Porcelain Magnetic Whiteboard, 96 x 48, White Surface, Satin Aluminum Frame Doubles amount of usable space with fixed back panel and two sliding panels. Top-suspended panels glide on nylon rollers for smooth operation. Porcelain-on-steel creates durable, high-performance surface that resists scratches and stains and accepts magnets. Constructed with heavy-duty anodized aluminum trim. Includes 2 natural cork map rail.