In article ,
writes:

Some misinformation on the clix plug, It did have a flex grip similar to that
in a bayonet lampholder. I think I still have one somewhere. It was very
useful.

That is my recollection regards the flex grip too.
I did have one which was paired with a BC adaptor
(as shown a couple of pictures below), which had
a short length of string coupling the two together,
so although you could unplug it, they didn't fall
apart more than a couple of inches. I assumed this
was for switching off the associated appliance
(perhaps an iron or table lamp) without the
appliance cord falling away from the lampholder.

--
Andrew Gabriel