Abstract: A lightweight case with a mobile wall cabinet having a base tray, a case lid in the form of a hood shell, with a base tray mounted on it, in particular rotatable through 360° perpendicular to the roller plane and plane of the base tray, wheels and telescopic rails with integrated locking as prefabricated components and a flexible, lightweight suitcase wall material which is formed between the floor trough and the hood shell, wherein the hood shell with the telescopic rails is designed to be lockable, translatorically retractable and extendable by means of a pushbutton integrated in the hood shell and an integrated pushbutton force distributor strut and with a supporting strut, the supporting strut fastening at least one, preferably two, telescopic rails to the suitcase wall material, so that the suitcase is formed with a stable spatial structure forming a wall cupboard, in particular also for the expanded state.