Medium-duty, standard set-up boxes that are great for storage of letter or legal files. Ideal for stacking & storage on shelves. Lift-off lid allows for semi-active use to add & remove files as needed. Equipped with two built-in side handles for easy transport & storage. The easy assembly boxes can be put together without packaging tape. Collapsible & reusable. Made of corrugated cardboard with 350-pound stacking strength. Box Type: File Storage; Box Style: Easy Assembly; Strength: Medium-Duty; File Size Format: Letter / Legal.