Stack and store your most important filing with these medium-duty storage boxes. Crafted from sturdy corrugated paper with a double bottom and rolled edges for superior durability, these boxes are made for stacking with or without shelving for versatile storage options. Lids lift off for easy access to your files and also lock to prevent inadvertent spills. These Bankers Box Stor/File letter-sized boxes feature FastFold assembly for frustration-free use. | Bankers Box | | Medium-Duty Corrugated File Storage Boxes, Lift-Off Lid, Letter Size/Blue, 20/Carton | White and Blue | Best Buy