Iceberg ICE31140 Clarity Glass Dry Erase Whiteboard, 48" Length x 1" Width x 36" Height Frameless 1/4" tempered glass non-ghosting writing surface mounts to wall with included hidden hardware Ultra-white backing combines with white surface to maximize visibility, clarity and ease of cleaning and erasing Aluminum channels support a high-tech rail to capture markers and an eraser tray Glass surface will never ghost High-tech elegance with frameless design