The mark consists of a generally geometric rectangular prism with two diagonally opposite corners approximately right (90°) angles and the other two diagonally opposite corners strongly rounded. The three-dimensional mark is the container for the goods. The dotted lines at the top of the container are not part of the mark, they indicate an entry/exit port and screw cylinder for attaching a cap or pump. A geometric prism is a polyhedron comprising an n-sided polygon base, a second base which is a translated copy (rigidly moved without rotation) of the first, and n other faces, necessarily all parallelograms, joining corresponding sides of the two bases. All crosssections parallel to the bases are translations of the bases. Prisms are named after their bases, e.g. a prism with a pentagonal base is called a pentagonal prism.