A cup holder with a securing mechanism for use in a vehicular cup holder for receiving and securing different sized cups. The cup holder includes a cylindrical opening defined by a cylindrical wall and bottom wall, tab openings formed in the cylindrical wall, tabs projecting through the openings, and a biasing device for biasing the tabs. The tabs are attached to the cup holder so as to be movable in a horizontal direction and to be rotatable in a vertical direction about a central pivot point. The tabs are biased so as to project fully into the cylindrical opening and to be in a non-pivoted position.