Ideal for stacking and storing computer printout binders. Heavy-duty, triple-end, double-side, double-bottom construction withstands the weight of heavy bound computer printouts. FastFold® quick and easy assembly. Reinforced tear-resistant handles make box comfortable to carry. Deep, locking, lift-off lid stays in place for secure file storage. Box Type: Stackable File Storage; Box Style: FastFold® Quick & Easy Assembly; Strength: Heavy-Duty; File Size Format: Letter.