Fasten on top of lateral file to maximize storage space (attaching hardware included). Shelf adjusts at 1" increments; when centered, accommodates 12" high binders above and below. “Slide-by” doors with recessed handle. Includes eight wire file dividers 18d x 27-7/8h. Meets or exceeds ANSI/BIFMA standards. HON® Limited Lifetime Warranty. Optional Lock Kit (HON9310), sold separately. (Cannot ship UPS.)