A packaging unit (10) for the storage and/or transport and/or processing and/or support in a suspended vertical position, of objects (20), comprising a tray (30) which can retain a plurality of the objects in a vertical position, and a cover (32) which can cover the tray. According to the invention the cover (32) comprises an upper wall (34) and at least two flanks (24, 24′) which extend downwards on two opposite sides of the upper wall, and are prolonged at their lower ends by fingers which can be placed below a lower surface of the tray (30), thus rendering the tray (30) and the cover (32) integral.
