Patent ID: 8100321

Claim:
A packet serving to contain loose items, comprising: an outer casing, an inner casing having an opening, accommodated slidably within the outer casing and movable between a closed configuration, in which the opening is concealed completely by the outer casing, and an open configuration in which the opening is exposed at least in part, a locking mechanism for retaining the inner casing in the closed position, the locking mechanism being operable externally of the packet for releasing the inner casing from the closed configuration and allowing the inner casing to slide toward the open configuration; the locking mechanism comprising a first tongue integral with and located internally of the outer casing, and a second tongue integral with and located externally of the inner casing, the first and second tongues being mutually abuttable in such a way as to prevent the inner casing from sliding in relation to the outer casing; wherein the first tongue is attached to a side wall of the outer casing and folded double internally of the outer casing along a transverse crease line, and the second tongue is attached to a side wall of the inner casing and folded double externally of the inner casing along a transverse crease line.