Double-walled construction on all panels increases stacking and carrying strength. Quick and easy assembly lets you get organized quicker. Lift-off lid allows for semi-active use to add and remove files as needed. Equipped with two large tote side handles for easy transport and storage. Designed to stack two on a shelf. Smooth rolled edges eliminate paper cuts and make stacking and sliding easier. Collapsible and reusable. Made of corrugated cardboard with 500-pound stacking strength.Package Includes: (12) Lids