Abstract: The novel case contains at least one rigid, obstacle-free basic frame element with a U-shaped profile and laterally fittable, interchangeable lateral elements. The latter can be in the form of e.g. plates, case shells or lateral covers provided with roller shutters.The case can be opened between the basic frame element and one of the lateral elements.The volume within the profile makes it possible to receive different additional elements. Examples of the latter are locking elements, carrying handles, name plates, identification elements, accessories, roller elements and carrying straps.The basic frame element can be in the form of a rectangle, square, polygon or circle.