These were once door knobs…but now have been cleverly modified to serve as wall hooks! They each have a screw that has been welded to the back of the knob and can simply be either screwed into a beam/wall-stud/wooden structure OR using a drywall anchor (not included) they can be used in dry wall as well! Colors vary with salvage product availability. If you are looking for a specific color please contact the artist. Price is for ONE knob!