Packaging obtained from a single blank that is precut and folded from a sheet of material, the packaging being of the type comprising: - an outer shell formed from at least three outer panels hinged successively one to another about longitudinal fold lines that extend parallel to one another in the longitudinal direction, the fold lines defining longitudinal sides of external panels, the outer shell being closed in a loop to define a closed outline around an inside space in a transverse plane perpendicular to the longitudinal direction; and - a liner element comprising a main shell having at least three main panels hinged successively one to another about longitudinal fold lines that extend parallel to one another in a longitudinal direction, the fold lines defining longitudinal sides of panels, the main shell being closed in a loop to define a closed outline around an inside space of the liner element in a transverse plane perpendicular to the longitudinal direction; the packaging being characterized in that the liner element includes, at at least one longitudinal end, an end liner device (60, 80, 60', 80') comprising: - an end strip (60, 60') having as many end panels (61-64, 61', 64') as there are main panels of the liner element, the end panels being hinged successively one to another about fold lines arranged in alignment with the fold lies of the main panels, the end strip being looped to define a closed outline around an inside space of the liner element in a transverse plane perpendicular to the longitudinal direction; - for at least two distinct main panels, at least one longitudinal link tab (80, 80') connecting the main panel to a corresponding end panel, and the link tab of any one main panel being distinct from the link tab(s) of the other main panel, the link tabs being separated from one another transversely by separation cutouts (82, 82') in the sheet of material; and in that each link tab (80, 80') has a transverse intermediate fold line (84, 84') that defines a main portion (80a, 80'a) and an end portion (80b, 80'b) of the link tabs, which portions are attached respectively to the corresponding main panel and to the corresponding end panel, so as to enable the end strip to be moved towards the main shell by folding the two portions of the link tab one on another about the intermediate fold line. - an outer shell formed from at least three outer panels hinged successively one to another about longitudinal fold lines that extend parallel to one another in the longitudinal direction, the fold lines defining longitudinal sides of external panels, the outer shell being closed in a loop to define a closed outline around an inside space in a transverse plane perpendicular to the longitudinal direction; and - a liner element comprising a main shell having at least three main panels hinged successively one to another about longitudinal fold lines that extend parallel to one another in a longitudinal direction, the fold lines defining longitudinal sides of panels, the main shell being closed in a loop to define a closed outline around an inside space of the liner element in a transverse plane perpendicular to the longitudinal direction; - an end strip (60, 60') having as many end panels (61-64, 61', 64') as there are main panels of the liner element, the end panels being hinged successively one to another about fold lines arranged in alignment with the fold lies of the main panels, the end strip being looped to define a closed outline around an inside space of the liner element in a transverse plane perpendicular to the longitudinal direction; - for at least two distinct main panels, at least one longitudinal link tab (80, 80') connecting the main panel to a corresponding end panel, and the link tab of any one main panel being distinct from the link tab(s) of the other main panel, the link tabs being separated from one another transversely by separation cutouts (82, 82') in the sheet of material;