A casing for a cosmetic article has a base having an inner surface which accommodates a mirror. A lid is rotatably and directly mounted to the base, the lid being rotatable, relative to the base, between a closed position and an opened position. An intermediate tray is located between the base and the lid for accommodating the cosmetic article and covering the whole base, the intermediate tray being slidably mounted to the base so as to be movable relative to the base between a retracted position, in which the intermediate tray substantially covers the inner surface of the base, and an extended position, in which the intermediate tray exposes the inner surface of the base. The intermediate tray being further rotatably or slidably mounted to the lid so as to be movable relative to the lid. Rotation of the lid from the closed position to the open position causes the tray to slide from the retracted position to the extended position.