Open it when you need it, fold it when you don't. Keep this crate folded and handy in the office for files, in the car for supplies and groceries, or anywhere you would need a quick and 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; Interior Volume Capacity: 1.24 cu ft.