a folding box forming a hinged lid container especially designed for cigarettes and other smoking articles is provided with a stationary box , a rotating cap and a locking mechanism . the rotating cap and stationary box are provided with complementary locking elements within the walls of the box to effect a locking and unlocking of the cap with an accompanying click in the release and the joinder of the locking elements . the locking means form a part of the walls and lie in the respective planes of the walls when the cap is in the closed or open position .