Very suitable for attachment to a concrete ceiling. Usually fitted with a flange socket so that any drilling damage to the ceiling is covered neatly. Also a great tool to attach a steel wire. Strikingly fine design. There is also a screw mounting system, where the cable is equipped with a round ball. It can be moved via a slot in the round head, which is attached to the wall or the sloping ceiling. As a result, the wire always comes to hang down perpendicularly. For those out of the way places.