A bracket mounted on a car ventilation grille, in particular for fragrance carriers, consisting of a frame and fastening and stabilizing elements, characterized in that the frame is a U-shaped semi-closed structure provided with two arms, and the fastening and stabilizing elements are at least two sliding flexible fastening pads with a thickness less than or equal to the distance between the frame arms, at least one of which is applied to the first frame arm and at least one of which is applied to the second frame arm.