Open it when you need it, fold it when you don't. Keep this crate folded & handy in the office for files, in the car for supplies & groceries, or anywhere you would need a quick & useful storage box. Holds letter or legal hanging file folders. Folds to only 3" thick. Made from impact-resistant plastic. Stacks securely up to six high. Snap-on lid is included. Box Type: File Storage; Box Style: Collapsible; Strength: Medium-Duty; Capacity (Volume): 1.24 cu ft.