Holds eight 1 1/2" binders or a variety of binders up to 3", with extra hand room for quick binder retrieval. Heavy-duty, triple-end, double-side, double-bottom construction handles the weight of full binders. 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.