Abstract: A magnetically operated latch including a pivotally attached magnetic latching means engageable with an aubtment, but disengageable when brought into magnetic contact with a key magnet. A pivotably movable lock is provided to prevent reengagement with the abutment when the key magnet is disengaged from magnetic contact with the magnetic latching means.

Abstract: A cigarette mouthpiece of substantially cylindrical configuration assembled of two identical semi-cylindrical sections disposed in mutual concavely facing relationship with each longitudinal edge of one section in abuttment with a different one of the longitudinal edges of the other section. When assembled into a mouthpiece, the semi-cylindrical sections cooperate to define a plurality of generally longitudinally extending air ventilation grooves equally spaced from each other around the perimeter of the mouthpiece and a plurality of smoke flow capillaries extending generally longitudinally through the mouthpiece.