Bankers Box STOR/FILE Medium-Duty Storage Boxes, FastFold, Lift-Off Lid, Legal, Case of 12 (00702) Double-end, 1 1/2-side, double-bottom construction. Medium-duty for use with or without Shelving. Fast fold quick and easy assembly. Deep, locking, lift-off lid stays in place for secure file storage. Rolled edges add strength and prevent paper cuts.