Large storage box with hinged lid and locking tab fastener. Very strong construction with double wall thickness to end panels and base. Fastfold automatic assembly for quick & easy construction. Compatible with A4 or foolscap/folio/legal transfer files, ring binders and lever arch files. Accommodates six 80mm or four 120mm Foolscap size transfer files. Labelling area on all sides. Tote handles for portability.