A vanity case which comprises a case body having a cavity, a lid coupled to the back section of the case body, and a tray frame received in the cavity of the case body so as to be slidable forwards and backwards. The lid has an engaging hook piece in the front of its underside. The tray frame has an engaging protrusion and the tray frame is always biased backwards. When the lid is closed, the engaging hook piece of the lid engages with the engaging protrusion of the tray frame. A rear end wall is integrally formed on the rear end of the tray frame in the middle so as to straddle a back wall of the case body, and when the rear end wall is pushed toward the front, the tray frame is moved forwards, thereby releasing the engagement between the engaging protrusion and the engaging hook piece.