Quobus, designed by Marc Newson, is a modular system of storage/display units. It’s made up of enameled steel cubes in three different sizes. “Each cube is enamelled in one of five colours (off white, charcoal, pastel green, pastel violet and pastel blue) and pinned together with brass screws

Source: Marc Newson’s Modular Quobus Display Units – Core77