The invention relates to a plastic case (1) comprising an upper case part (2) and a lower case part (3). The lower case part (3) consists of a lower housing part (4) and an insert (5) arranged in the lower housing part (4). The insert (5) consists of an elastic material and comprises at least one recess (6). The recess (6) is adapted to an object to be received. The lower housing part (4) and the insert (5) are formed as a single piece from the elastic material. At least one force introducing device is arranged at least in certain parts in a hinge area of the lower case part (3). The invention also relates to a hinge arm profile (12) for use as a force introducing device in a hinge area of a plastic case (1) made of an elastic material. The hinge arm profile (12) has anchoring means for a form-fit mounting of the hinge arm profile (12) in the elastic material.
