The main function of a lock is of course to keep the door closed, and spaces separate from each other. But they can also add interest to the smooth surface of a door and form a design feature. They can be protruding or flush-fitted, square, rounded or oblong, and made of various materials; The lock, and particularly its cover, can add a stylish finishing touch to a door. In brass, aluminium, stainless steel, black steel or lacquered in any RAL lacquering, door locks and handles provide visual interest on the door leaf!