Versatile, solid wood organizer can be used horizontally for literature, vertically for books or upright as a tub-file for file folders. Stackable, modular design can expand your storage capacity. Solid wood construction with four adjustable or removable dividers creates just the sorter your work space needs. Dividers adjust in 1 increments with finger cutouts for easy access. Organizer holds letter-size file folders. Soft rubber pads protect desk surfaces. "