Revealing the true colors of four Givenchy powders, the base of Alcan Packaging Prisme Libre powder case is in untreated crystal PMMA. The base is divided into four cavities, giving each powder its own space. The ABS bottom of the case is ultrasound-welded to the base while four untreated PP caps close off the cavities. These four openings are used to fill the case in a filling plant and a bottom label then masks the caps. On the underside of the base, in the center of the cylindrical a...