One of three Chrome Plated Bottle Stoppers, this version has multiple rings and is supplied with an 8mm thread which has a hexagon key hole in one end to enable screwing into the turned wooden knob.
See also the Z1065 Chrome Plated Bottle Stopper which has two "O" rings to seal the wine bottle, and a 5mm brass thread.
See also the Z1067 Chrome Plated Stopper which has multiple rings in the sealing area, and a 5mm brass thread.